ibuypower and cyberpower are the best priced custom computers out there.
I fogot the other one, desert something...But they are quite overpriced...
I would personally go cyberpower. Ive purchased form them before, good qulaity parts.
BUT!
See what they have on newegg first, those venders sell to newegg and neweggs sell there computers, you could actually get it cheaper off newegg than directly from them...
Do keep in mind, though, that they're much smaller companies than Dell or HP, so it could take some time to get all of the parts. Both of them are back ordered frequently. They use good parts though...nothing like the crap you'd get in a big box brand.
yes.....newegg.