why not just use the drumstation sounds and use the reverse function in your sequencer?
I would also recommend the Jomox Xbase-09, but be warned that it is REALLY buggy. Try programming patterns into a machine that decides to not save your patterns in the banks, and recalling the patterns may result in completely different settings to the ones you had programmed in. The Jomox has an amazing sound engine, but i cant believe Jomox simply ignored the bugs.

If you want the real thing, just suck it up and take the hit; ie: go for the real deal: The 909.
Yes, the sounds are dated and overused to death, but if that is the sound you want, then the 909 will give you everything you need and possibly more. Samples wont cut it. Ask yourself this question: do you want vitamins from a pill or do you want vitamins from a fresh orange? haha ....good luck :)