The Ultimate RPG Gaming Table is a homebrew project from some serious gamer makers. The table sports dice pits, individual lighted player stations, a DM's station with a space for a computer, and a system of under-table tubes through which the DM can pass "message spheres" bearing s33kr1ts to individual player-stations. Woah.
(via Digg)
Update: RJ points out this rival high-tech gaming setup with an LCD projector:
I scan in adventure maps and Photoshop out all for the DM-only information (room numbers, secret doors, traps, etc.) and create a mask layer. We then suspend a digital projector (connected to my laptop) from the ceiling, pointing directly at the game table. I project the edited map onto the game table and scale it to match our miniatures. As the players explore the map, I erase portions of the mask layer, revealing the map beneath.