1.Will the 2600 Pro run games like BF2, BF2142, Doom 3, Quake 4, Counter Strike Source, Civilization IV, (etc) at high-highest settings @ 1600x1200 w/ 2xAA at around 40fps ? My config would be 24" 2.8GHz, 2GB/4GB RAM, 2600 Pro. 2.Does 4GB of RAM have such a tremendous impact apon games over 2GB to be worth the extra £450 ? (about $850) 3.I have a 40" TV - could I hook up the iMac and play the games though there ? 4.Is it possible to insert another GPU inside the Mac (atleast just for gaming in windows), or is that out of the question ? Thanks in advance.