Uh, you can find various drums kit packages floating around the internet for free. search for the roland sp808 kits, sp909.
and the have other kits.
Best thing to do is load the samples you want into a program like fruity loops and build your own beats.
I think there is a shareware version of fruity.
The same goes for complete beats, you can get them from random places, but thats not as original and may have copywrite issues depending on your source.
