jwatte:You need an ATI HD 3xxx series card to use shader model 4.1. Or some later NVIDIA offering.
Or a cheap
S3 Chrome 400
jwatte:I think DX 10.1 is not that exciting, because the installed base is so
small.
I disagree. Cubemap arrays, unlimited read MSAA depth, increased inputs/outputs, required MSAA, independent MRT blending and custom AA resolves are very cool!