Well, i have one but the drivers are flimsy and unstable. It runs under Fritz and Babaschess and ICC. You always have a huge time lag when playing with it. That's a downside.
@zitterbart: There has been a wooden board computer, the Novag Citrine. It connected via serial interface with the PC. You could use it under the Arena GUI and playing against an engine of your choice. But AFAIK it is not produced anymore.
The DGT Boards are expensive, but they are high quality. But the software... Hmm, well...