I just ordered a 4.0 i7 5k iMac with a 395x card, a 1TB SSD and an OWC 32gb ram upgrade. I use my mac for photo and video editing, but I'd like to play some Steam games through bootcamp. Now I know through forum posts ad nauseam that the iMac is NOT a 'gaming machine,' nor do I really care about 'serious' gaming. But I'd still like to tool around in Navel Combat or maybe an older CoD, or Skyrim with some of the newer mods. What kind of performance can I expect? Are there any changes I should make in Windows after I install via Bootcamp to get better performance? Will I be able to run any games in 4k? Running Alien Isolation in 4k would be a treat, for instance!