So i was just wondering if its worth for me to jump from an EVGA 8800GTS 640mb (g80) to an ATI 4850 512mb? I can pick up the 4850 used from a friend for about $60 canadian but im wondering if its worth it if im only going to be using it on a 17in screen at 1280 x 1024 playing games like CS:S, L4D and Starcraft 2 when it finally comes out 
Or should i just wait until i pick up a samsung P2370 and then upgrade, because i wont be getting the monitor for a bit and probably wont see any real benefit at this resolution right?
Im just unsure
Any help appreciated! Thanks! =)
PS: My specs are in sig

Or should i just wait until i pick up a samsung P2370 and then upgrade, because i wont be getting the monitor for a bit and probably wont see any real benefit at this resolution right?
Im just unsure

Any help appreciated! Thanks! =)
PS: My specs are in sig