Hi folks First post, please be gentle. Long time fan of FSX, and more recently XPX. However, with my AMD x4 965 BE and Radeon 6950 I'm suffering with FPS to the point where I don't enjoy flying without all the bling on screen. I have read numerous threads and reports stating that XPX now supports multi cores and HT, so I was wondering how much an upgrade to the FX-8350 will increase my FPS. I am not prepared to shell out for a whole new Mobo/RAM/i7 and GPU just yet, so can any please advise if I will notice a significant improvement over my current h/w with the simple upgrade in CPU? If so, will my GPU pose the biggest bottleneck. Thanks