What should I upgrade? CPU or video card?

[globe]

How much RAM? If only 2GB, then more RAM would be in order, but if you're already at 4GB, then going beyond that becomes an exercise in diminishing returns.

Got 4GB on my system.

 

[globe]

I'm starting to see some 2GB 5850 coming to the market. How much benefit will I gain with that extra 1GB?

 

[fffblackmage]

At 1920x1200, there's probably little, or nothing, to gain with more vram.

 

[globe]

Thanks to all the suggestion. I'm now oc'ing my Q6600 to 3ghz. System has been stable so far. Just ordered a Sapphire 5850 Toxic as well.