I use Addicted Drums (and EZ Drummer)
http://pro-audio.musiciansfriend.com/product/XLN-Audio-Addictive-Drums?sku=702877
and I use these MIDI files... anything you may ever need......
http://www.groovemonkee.com/home/index.php
In the "Kit" section I can tune the drums and a whole bunch of other recording friendly things... including mute indivigual drums/cymbles or solo for seperate track mixes.....
examples:
http://www.sonicbids.com/DavidHayden
the first 7 under audio......
Thanks for this MIDI loop library!