I'm planning on the next upgrade, and as usual trying for a low-buck set-up that will run FSX at a reasonable frame rate. I've sort of zeroed in on a hybrid AMD 780 chipset board with onboard Radeon graphics, and plan to add a Radeon 3800 series PCIe that will match the Crossfire requirements. CPU will be AMD dualcore 6000 or so. memory will be 3 Gh. Tom's Hardware has benchmark charts for FSX but they don't really tell me much - almost everything they run is around 27 to 28 f.p.s. for 1600 x 900 display. Anyone have experience with onboard hybrid set-ups like this?