Generally, this is a motorcycle kinda joint,BUT, we do have a few who have some computer savvy and at least one who I consider fully fluent. Someone will be along with guidance.. but I am not the guy you need..

Things are much easier than they used to be.
I remember pouring over the manual to figure out how the power cable was oriented.  And forget about the dern indicators and alarms.
now everything is polarized and keyed.

spend your time upfront, research the components.
anything will go together for a basic, but if you want a super your gonna have to do some work.

anything on sale probably ain't a super.

personally, I always bought yesteryears stuff at rock bottom prices cause I could do that every couple of years.

Justin o guy, I have seen one or 2 of them, the most recent being the navigation apps. he was one of the "techies" i had in mind that i was hoping might see this thread.

I've built quite a few computers through the years and it is easier now.  At one time you had to set bus speeds with jumper pins etc. but now all you have to do is buy components that are matched.  Of the three combo sets you listed I would go for either 2 or 3.  No. 2 has the advantage of an Intel processor.  But combo no. 3 has a DVD burner which you will need and the hard drive is a Western Digital which is a good drive.  Combo no.3 is better except for the processor, that's how they evened up the price.

The combos you have picked out will produce a machine that is capable of doing almost all tasks but will not have lightning fast graphics nor will it be a quick gaming machine.  Personally I would go with an Intel I5 processor with 4 cores and would upgrade everything to match.  Name brand power supplies are also worth the investment with large slow turning variable speed cooling fans etc. for quiet operation.  Budget power supplies sometimes die in a couple years.  All that will jack the cost up considerably but over time it is worth it.  But if you are only looking to run the machine a couple years and then upgrade you'll probably be happy with any of those combos.

Bringing it back to motorcycles, those particular combos are 250cc Honda Rebels, with an I5 we're looking at a 650 Savage.

Good approach Savskad, those combos will make perfectly good PCs, as good or better than most in the stores.  The bonus is that down the road you can use some of the components again, like the case, DVD drive, case fans, etc.  After you build a few you'll have lots of parts and will be able to build or upgrade for less money.

A static strap for the wrist is a good idea, especially in the winter.  You don't want a spark jumping from the processor or a memory chip to the board as you push it into the socket. They are inexpensive or you can make one for next to nothing.  Good luck on your project and let me know how it turns out.

I love the 250 Nighthawk, the sweetest handling bike I've ever ridden.    

I hope I ma not to late to the game. I have built every PC I have since 1996. However, I will say right off I am an AMD "fanboi". So all of them have been AMD. ( my last Intel was a 486SX)


Building PC's even gaming rigs is very easy, and to me loads of fun. First off .. lets drop the third option as it use the APU. An APU is a combined CPU and GPU, though if the unit is to be a "throwaway" it may be ok. I prever to have a real CPU and then buy a GPU, which I upgrade more often than I do CPU's.

I would also say that the uses you listed are NOT for a weak system!!! Vid editing is a special case and CAD is as well. You did start by stating the most important thing first.. how you will use the PC.

I LOVE Newegg, and 100% of my PC's.. TVs, cameras and all things electronic come from them. That said ... I do notl ike nor trust their combo packs. AS you can see the savings are not that big ( $60).  

A good start would be be with looking at what your software NEEDS and wants. Get enough ram and enough GPU (GPU is video card). Then choose a flavor of CPU ( Intel or AMD) them find matching memory, then size the PSU ( power supply).  Pick a case you like. My case is now about 10 years old and was $80 back then. Now they are $50... and its still a hoss of a case. Also by picking parks one at a time and watching for sales I am sure you can beat the $60 for the combo.

That leaves drives. I am no longer a fan of internal CD/DVD drives. They just are not that useful and prefer to have an external ( USB) DVD burner. Then I like to have a GOOD but not too big main ( aka C) drive. Personally I still use the old spinning platter aka HDD, but many are happy with a GOOD quality SSD ( soilid state disk). Then I get second internal drive for data... and in my case a third drive ( SSD) for programs.  Yes that is three drives ( 4 with the DVD). The slowest point for any data is from disk (esp. HDD). So by having different types of data on different drives this speeds up overall performance.

Drives:
Main drive HDD or SSD of 240GB to 500GB
Program drive  SSD 60GB to 240GB
Data drive 800GB to 3TB

Do not use an extrenal (USB) for data as it is wayyyyyy too slow.

In my case:
Main drive: WD Raptor 300GB ( this is the fastest HDD around 3.5 format
Program Drive: Kingston SDD Now 60GB - cheapest SSD, but so what it is dies I only lose program data which is sitting on a DVD somewhere anyway
Data Drive: WD red 1TB 3.5"  A newer drive by good ole WD

Note: Video editing needs a  drive that does not interrupt writes, as most HDD do. WD  (and others) make SPECIAL drives known as AV drives that will not interrupt the writes.  ( I think WD calls them purple)

PSU- pay extra and get a GOOD one. Watts do not tell the entire story. I bought a 450 watt PSU that had all the Amps on the CPU. Leaving only about 80 watts for the GPU and HDD. It was a gimick. The PSU was no good for anything. Personally I love PC Power and Cooling. Mine is 750 watts. It has and will drive 4 vid cards... an 8 core CPU and 6 HDD all at once!

Memory.. it use to be that anything over 4GB was kinda wasted and VERY expensive. Not anymore with 64bit OS newer programs are starting to use the larger memory space that is offered. 8GB is not too expensive and 12 or 16 might be useful if your CAD program use it.

Now have FUN!!!!    

Thank you everyone for your feedback. I have decided to go with Combo #3.

My reason being this is to an extent a "throwaway" computer. I plan on doing a major upgrade hopefully within the next year or two. I won't be doing MAJOR video editing, just for motovlogs and stuff. Whenever I'm running CAD, that will most likely be the only thing I'm doing, unless I'm using Google Chrome on the side or something. My laptop, a 2011 Sony Vaio with a dual core (intel?) 2.4ghz, 4gb ram, will run CAD, just not very quickly or smoothly.

The thing I like about this computer is the motherboard seems capable of doing up to 3 screens at once. Only cons people mentioned were many came DOA, that is a gamble, but if it happens, I'll contact newegg about swapping it out for a functional one. Any reviews for it that weren't "DOA" were quite positive.

I mainly want to test the waters with DIY pc building so I'll know what I want from a computer.

Like you need to own more than one motorcycle to realize what you want out of a bike. Obviously some people love GSXR 1000's for their lighting fast speeds, some of us prefer the more modest bikes like the Savage.  <-- I don't know if that's a good analogy or not, but it makes sense to me.

I will eventually have like $1000 to drop on a solid machine, that's why I'm not investing now.

Plus, this is actually a "christmas present" from my parents, I don't wanna abuse their kindness anymore than $350.

I'll keep y'all updated on it as I get it and put it together.

Thanks again!