Summary: There has been hardly any alternatives to Intel integrated graphics chip for socket 775 boards. nVidia is the only one with any alternatives, and their efforts are half-hearted at best. Many of the nVidia-based socket 775 boards are semi-crippled with single channel memory controllers and only two memory slots. For high definition playback, GMA X3500 performs similarly to nVIdia's Geforce 7 series IGPs.
Pros: Good HD playback, 3 Controllable fan headers, Components stay cool, Cheap... for an Intel board
Cons: BIOS locked down (no voltage & frequency control), Slightly high power consumption, Lacks HDMI, S/PDIF, Poor 3D performance, G43/G45 now available