I was going to say you probably use Cubase since that's the one everyone complains about with the MD. It's capable of alot of different sounds. In the case of buying on the free market you always have choices.
Not in any order:
Software with a controller.(Best of all worlds)
Electribe(a bit limited, I heard)
Machinedrum(large "inorganic" palette, not going to sound like an 808 or 909 but close)
MPC 2000xl (limited by your samples)
(You could try to buy a Machinedrum from Drammy.)
The machinedrum is a bit difficult to make it sound like real drums. I mean organic/natural. It can be big tough and rough, and also soft. Most demos don't do it justice. Go check out the Yahoo Elektron Group or the
elektron-users.com. The Yahoo Group should have in the Files section a Machinedrum contest. The elektron-users.com site will host the new contest. That should finish around the end of the month of Feb. Get this; this month's contest will feature the noise machine!
It's just a matter of trying them out. I can't stress this more find them used. It's just plain cheaper.