Check out this video featuring IceRocks of DXA. Here he shows you how he uses the SP-1200 and MPC 3000 to make some beats. The first beat using the SP-1200 features me on bass (first heard at about the 1:28 mark).
Here's the second video by IceRocks this time on the MPC 3000. (I'm first heard around the 2:48 mark)