Get a x0xb0x, a quarter of the price of a 303, and it has a few extra features. There's a guy in Sandy (bedfordshire) who makes them, he's on ebay. He made mine and it's poifect. (I picked mine up to cut costs, saved about 80 notes) You could also get what ever the latest Reason is, and hook it up to the free version of Rebirth (from http://www.rebirthmuseum.com/ ) and that has 2 303s an 808 and a 909 to play with. Or just get ableton and load it up with VSTs. You don't need to spend shit loads on a midi controller, you can pick up a decent one for around 100 quids.