Sorry if it seems like a dumb question. I would just like to have the (relative) power of the 4870, and use the 120 for two extra monitors. When I say I'd want the power of the 4870, I mostly mean gaming with that card. Now that I've typed this out, it sounds less and less like it would work. Any input would be appreciated. Also, I asked an Apple guy (through Apple's chat) if I could run two 4870s, and he didn't think so due to power limitations. Can anyone confirm this? Thanks a bunch, everyone.