get a low profile gpu like 240gt and invest on a better psu. Yes, any 350wt psu is good enough for u but i suggest u buy a 450/500wt psu. U can use it in future too. And why 240gt ? It's a decent gpu for ur res, and in future u can use it as a physx or backup card as well. And investing in this rig won't be a good idea, it's now outdated, components of this rig r hard to find and expensive as well.
I don't want to upgrade it. Its only for 2 to 3 years. Then i will be in 11-12 and it would not be used for gaming. I just need a graphic card
Turning 13 this week. Why?? I want to learn