Just get Waldorf's Attack VSTi, great little drum synth with two oscillators that serves me for all me drum needs, and a little look around the net might find u it a bit cheaper if u see what I mean ;).

Does good bdrums as well that with a bit of Maxbass really do the job, and has got a random function good for hard to create sfx as well.

It may or may not do the job 4 u but it will be a cheap intro into the wacky world of drum synths.