Just wanted to share my experiences with the DiNovo Edge keyboard i just bought for my Shuttle HTPC i just built. It's touted as the world's most advanced keyboard, I don't know about that but for a media center build it really cannot be beat. Very high quality finish and aesthtically pleasing LED's that have a fade out effect, good battery life and exceptionally easy to install. My only gripe is that you cannot assign an eject button for the optical drive, just gonna have to get off that ass! it's not the cheapest around (set me back $178), but it's all worth it once you've tune in and drop out.
in short if you're looking at a HTPC build then this is an absolute must in my opinion.