GTX285 is a dated card. Unless you are dead set on Nvidia you want either a 5850 or a 5870 if you can afford it. I would get a 750W PSU. I am guessing you are going i7 for upgrade potential in future otherwise I would go with i5 750 personally
What is the difference of the i5 750 to the i7 920? Also yeah I think Ill go for the 5850, thanks.