Hey guys,I'm looking to upgrading my system as I would like to get back into PC gaming/Flight Sim X. Loaded up FSX today and I just cannot get good frames with any level of AA on my ATI 5770, especially in the clouds, applied Shader Mod 3.0 and it didn't do too much, along with playing around with various other CCC combinations. I tried 0 AA or AF and get ~60fps stable. Therefore I am asking, with a budget of ~$250, is it worth upgrading the graphics and would it have a significant effect?(6950 or 560ti I'm thinking). My reasoning for not updating the CPU+Mobo is that I would still be stuck with the problem of having a not quite outstanding GPU. Also that upgrade, as far as I can tell, would be more expensive, and perhaps it would be more logical to jump on the CPU bandwagon whenever Flight comes out.Specs: i5 750 @3.8Ghz, 8GB G.Skill 1600mhz RAM, P7P55D Mobo, XFX5770. Kenneth