Looking to upgrade my system. With medium-high settings, I'm getting around 15-20 fps and am looking to be able to get a boost.AMD Phenom 9950 Quad-Core 2.61 GHzATI RADEON 4870 PCI-E 512 MB DDR5WD RAPTOR 150GB 10,000 RPM SATAII500 GB SATA II 3.0 GB 16MB 7200RPM4GB DDR2 PC6400 MEMORYTHERMALTAKE MaxOrb GAMING CPU FANASUS M3A78-T AM2 790GX HDMI ATX AMDTHERMALTAKE TOUGH POWER 750 WATTWhat are the most cost-effective ways to get a significant boost in FPS for my system? I'm running W7 64-bit.Thanks a lot for any advice!

I would think maybe your processor is the biggest bottleneck. FSX likes to tap into raw speed, and 2.6GHz is a little low these days. Have you tried overclocking it?

Yep a nice i7 would do the trick and maybe a new card if you have the money a 4XX fermi card would be good.

Thanks for the advice! Got a great deal on a new Phenom II x4 965 3.4 GHz processor that has increased my FPS significantly!

Nice, enjoy your new rig.