I've done lots of research and I need help making my final decision!!!

I got my 2500xp oc'ed to 200x11 and it's currently stable under load at 47c (relative) but when it was at 48c it crashes within an hour of starting the benchmark. Im lapping my volcano 9 tonight to help when summer arrives and to help with cooling and stablity I need to change my case and psu. I currently have a no name brand case with a low intake volume and a sunpex 350w psu.

I have two choices im thinking about considering my budget. One is the Antec SLK3700-BQE and the other is Chenbro Xpider (gaming bomb) with a THERMAL TAKE 420W PSU.

any advice? or better ideas (must be a mid-tower)

For the PS, I would recommand either an Antec or an Enermax.

I never had any problem with my Antec True Power.

TT is fine, but i would go with the 480W
and i suggest the antec case, good luck1