So I've finally built a computer that I'm going to "attempt" to play Crysis on at decent fps. I'm hoping to use a mixture of high and very high settings, my biggest desire to see the water effect goodies of very high. I'm not sure though if the "forced" very high water effects look as good on xp as they do on dx 10 on vista or windows 7 though. Anyways, I'm a bit confused as to what would be the best OS for good fps for Crysis. I'm looking at XP 32, XP 64, Vista (64 as well), and Windows 7 beta. I'm sure it'll help to know my specs in order to determine what will work best for me. I plan on OC'ing the CPU to 3.5 and the GPU (not sure how high beyond stock yet), and I'll be using a combo of "Natural Mod" and "Cuban Ultima Doom Sword's" config files as well. Below are my specs (I'm aware I'll probably be bottlenecking myself with the CPU but I'm hoping OC'ing will make it better). Wolfdale dual core 2.8 Ghz Sapphire Vapor-X 4890 4 GB DDR2 PC2 6400 GIGABYTE GA-EP45-UD3P LGA 775 Intel P45 ATX Intel Motherboard I'm sure it looks like I don't know what I'm doing or I'm expecting too much with this setup (Later on I'll upgrade CPU or mobo as needed). Any suggestions on which OS to use greatly appreciated. Thanks in advance.