I would recommend getting the sfz soundfont player
http://www.project5.com/products/instruments/sfz_player/default.asp
or
http://www.kvraudio.com/get.php?mode=show&id=769
There are many soundfonts. nskit used to be free, but I see they are commercial only now
http://www.naturaldrum.com/
The easyrider kit is pretty awesome for a free soundfont.
http://www.michaelkingston.fi/kingstondrums/easyrider.html
If you want to pay a few bucks (about R135) for the computermusic magazine, you will find many a drum sampler with lots of great sounds on the DVD.