Question about graphics card upgrade

[jolancer]

a 7900GTX and X1900XT is roughtly the same performance wise.

anyone who'd say either one blows the other out of the water, is a fan boy.

see here:
http://www23.tomshardware.com/graphics.html?modelx=33&model1=519&model2=548&chart=214

 

[gmanych]

The Silverstone St60f is a excellent PSU... It has 4 12v rails...

 

[n30phYte]

your cpu is still adequate and any 7900 series geforce card is gonna be a major step up from your current configuration.