Yo PoLEASE you will be PLEASED with most of the 400 presets in the New Boss 770.
Price: shopping around via the 800 numbers, I got the box for 361.00 plus shipping.
It has some fabulous latin chops on it. I've had three drum machines and once you learn to move around on any drum machine, the rest are very similar. If you can listen to the Boss 770, you'll buy it. Plus it has 400 storage spaces to store your own drum creations/meters, etc.
Enjoy the beat,
Green Hornet