Will this PSU suffice if I threw in an HD4890?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182160
My Rig
Asus P5KPL-CM
Intel Core 2 Quad Q6700 @ 3.2GHz
4GB RAM 800MHz
HD 4850 (replacing with 4890 [hopefully])
320GB HDD
Windows XP
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182160
My Rig
Asus P5KPL-CM
Intel Core 2 Quad Q6700 @ 3.2GHz
4GB RAM 800MHz
HD 4850 (replacing with 4890 [hopefully])
320GB HDD
Windows XP