Building a new computer with $600 - $900

[Xenthydos]

I would probaly put that power supply down to 600w or 500w if you really want to cut corners, 5770 requirements I'm pretty sure only need 500w, I'd say 600w is good or 550w.

[Sakumo]

I would probaly put that power supply down to 600w or 500w if you really want to cut corners, 5770 requirements I'm pretty sure only need 500w, I'd say 600w is good or 550w.

Actually, given the right brand, that PC will even run on a 400W. But the PSU will burn out quickly, sooo... Get a good 500W-er.