Can my current system support a GTX 480?

Right now I have an E8400, 4GB RAM, and a GTX 260. I'm thinking about upgrading my videocard. What I am most concerned about is my power supply. This is what I currently own: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005

It's a Corsair 650TX.

Does that have enough juice to support a 480?

Right now I have an E8400, 4GB RAM, and a GTX 260. I'm thinking about upgrading my videocard. What I am most concerned about is my power supply. This is what I currently own: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005

It's a Corsair 650TX.

Does that have enough juice to support a 480?

LifesonFan2112

Wouldn't your CPU bottleneck the new GPU? I've tried my GTX 480 on core 2 Quad CPU @ 2.66 and it gave me around 20 fps decrease compared to i7 860 @ 3.00abuabed

I was lookingat getting the best LGA775 processor cause I thought they would be cheap now that the new Intel processors are out but they are still extrememly expensive. I guess this is because the supply is low. I'm not about to buy a new mobo, processor, ram etc.

I have another question. I tried to upgrade my Vista Home PC to Windows 7 Professional and it said it was not possible, but I was able to do I clean install. However, there is a folder called windows.old that contains lots of old files and game programs. I don't want any of this information and the folder is taking up like 120 GB. I can't seem to unistall the programs contained in the folder. How do I get rid of all those files? LifesonFan2112