Ah, there's separate drivers for Intel and AMD for the HD 3650. I had to dig up a different set of drivers, though, because the set on InsanelyMac I ran into first (Netkas?) gave me the checkerboard instead of OS X with QE/CI. I can send you the working drivers if you decide to go with this card, though, but do remember this-different things work for different configurations and Netkas (was that even what it was) may work fine for you.
Meanwhile, check your PMs for the audio fix.

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Custom Hackintosh...AMD Athlon X2 5000+ (2.6 GHz) on GA-MA78GM-S2H...Linksys WMP300n Wireless...ALC889a sound...ATI HD 3650 PCIe...1 GB DDR2 RAM...320GB Western Digital SATA + 200GB Seagate IDE HDD...Rosewill DVD-RW IDE...Running Kalyway upgraded to 10.5.7...All Fully Functional