I'd still stick with my original Mac Pro recommendation, on the sole reasoning that the OP is a gamer.
The 4 cores would not help you THAT much unless you are playing something like Quake that is SMP aware, but the ability to plug in your own video card is something you'd sing to at some point of your ownership.
As long as you retain the original card that came with your Mac Pro (for boot up purposes, as the Macs use a slightly different firmware), and plug in the extra card in a different slot, it will still be detected and function like an original card. The ability to rid yourself of Apple dependence and use low priced high performance generic parts in your Mac, why not?
By buying the iMac you are basically paying Eizo prices for a Chimei display. Nay, a worse than Chimei display considering so many got dead pixels on that other thread, and no Chimei user to date ever complained of a dead pixel on countless forums.
The 4 cores would not help you THAT much unless you are playing something like Quake that is SMP aware, but the ability to plug in your own video card is something you'd sing to at some point of your ownership.
As long as you retain the original card that came with your Mac Pro (for boot up purposes, as the Macs use a slightly different firmware), and plug in the extra card in a different slot, it will still be detected and function like an original card. The ability to rid yourself of Apple dependence and use low priced high performance generic parts in your Mac, why not?
By buying the iMac you are basically paying Eizo prices for a Chimei display. Nay, a worse than Chimei display considering so many got dead pixels on that other thread, and no Chimei user to date ever complained of a dead pixel on countless forums.