ahh, the sr16. where would a goth band be without an sr16...
i used to have one of them too
and before that was an hr16 which had awful snare and tom sounds but gorgeous hi-hats. mine was actually a hr16b which came with a 909 kick drum sound rather than the standard one, for that techno feel....
it was pants sounding 909 copy though and i preferred the standard kick drum. but this was back in about 1993 when all things retro where just getting popular so 909s where stupidly expensive and you couldnt get anything else that sounded remotely like one.
i sold it to a guy for 130 quid who said all he wanted was to stick it into his bank of kit and use it solely for the open hi-hat
however, software based drum machines...
are you running them as a vst plugin to something like cubase, or as a standalone desktop application?
for vst plugins i'd recommend
native instrument's battery, or
steinberg's LM4
they're both expandable and allow you to drop WAVs into and assign them sounds to certain key presses. i even have a bank of sr16 samples
this is a good site with loads of sound banks for all the major soft-synths and software drum machines:
http://www.kvraudio.com/
also, this site has a few links to some bits and bobs but i've no idea how good any of them are:
http://www.synthzone.com/drums.htm
one thing you will need if you are using your pc for music is a decent soundcard - one with good ASIO drivers - otherwise you will ikely have terrible latency (press a key and wait 5 secinds before you hear the sounds coming back!). you can get entry level soundcards with ASIO and zero latency now for less than 50 quid so its not too much of a problem. it used to be that you couldnt get one for less than £150
