I have an E6400, 2gb RAM and a 7600gt. I currently run all of my WoW instances from the same folder. I set my maxFPS to 35 and I can run 4 characters just fine but if I add a 5th, running through a city will bring fps down to like .5 . I can either up my ram to 4gb, buy a 9600gt or buy another hard drive and run from separate folders.

Problem is I run on XP so if I upgrade to 4gb ram, only 3 will be recognized. Will this kill dual-channel? As in does XP not even recognize the 4th stick, or will it only use half of it?

I currently do not have enough free space to paste in 4 extra WoW folders. However, I haven't been having problems with instance/zepp load times so I'm not convinced that another HD will make a big difference.

Clearly, the 9600 would be a big upgrade.