Good store-bought 3dcg computers?

No.513298 ViewReplyOriginalReport
So I've spent the last six months trying to build a computer to use for 3d animation, and the thing will not work. I've replaced literally every single part on the build, gone online for help, had my friend who builds computers look it over, had a guy who fixes computers for a living look it over, and everybody's been completely stumped.
I finally got the last replacement, my CPU, today, and hooked it up and turned it on. It did the same exact thing it's been doing since I started: not working.
I'm done, /3. It's broken me.

On a related note, anybody know where the best place to buy a pre-built computer for 3d animation is?