I've got several thousand midi files of drum loops (basically divided up into sections of songs) It's still on my HD somewhere so if you want a copy, just send me your email to [email]spam1@93744050.onlinehome.us[/email]

... and I'll do a search & either send it or give ya a link - just PM me through Guitar Tricks

I use them all the time with Battery, however you have to assign the drum sounds to the kits.
Most time you can use the standard setting but every once in awhile you get some weird sounds.