I haven't built my HTPC yet, actually. I have two roommates addicted to multiplayer games. I'm unsure I want to build a power computer for the living room while they still live here for fear of never being able to watch TV again.
As to your 3DMark scores, that has to be a problem of too old code. Definitely download the newest version.
I'm glad the 9700 is working for you otherwise. The one I bought is in my private rig now. It's supposed to have built in filtering hardware meant to clean up video. However, I can't say I've noticed much of a difference myself.
