Hey guys, I'm currently running a QuadCore G5 with 2.5gb of RAM and a nVidia 7800GT 256MB graphics card. But when I'm playing World of Warcraft in full screen on my 30" Apple Cinema Display, things become jerky and my FPS drops to about 15/16FPS. I was wondering would an ATI X1900 be an decent upgrade ? would it improve my performance at all or would it just be an expensive side step ? I'm not really up-to-date with all these fancy graphic's cards Thanks for your help!