A few months ago I upgraded my GPU, PSU, and some other small parts. Now I'm looking to upgrade to Windows 7 along with a new CPU and Mobo. My current rig is outfitted with an intel q8200 and I want to replace it with an AMD phenom ii x4 965 BE, will I see a noticeable/significant jump in performance? Also this will be my first time crossing an AMD CPU with a Nvidia GPU, is there any issues crossing these two brands? I've been told I might have some unwanted effects but I'm no so sure I believe that.