Hi!

Although I'm a PC user pretty much, I feel your pain. Or at least, I did. My old PC had only 512M and was extremely lagged out by Ironforge. When I upped it to 1G RAM, Ironforge stopped being Lag-forge (at least, not so much).

That PC has a 9600 in it, and it is quite good on fairly minimal settings.

The current PC is a Dell Inspiron 9300 -- 256M Nvidia Go 6800 in it :) very sweet.