After a year or two of wanting to get some sort of rhythm input device, I just ordered one of these suckers:
It's an MPD-16 and it's very hip-hop. If all goes according to plan I may have it by the weekend.
I should also mention that if any of you musicians are in the market for a Yamaha DD55 (the drum thing I was thinking about buying before I decided on the MPD16), there are tons of them on eBay. They seem to retail for about $200-$220 US and most auctions are going for $100-$120. Just so you know.