How do I set the Roll settings for the R8? Also how to I obtain some more drum sounds?

Cakeman-

I'm working from memory here, but I think it's Shift + Pad 8 to get to the roll resolution settings. Once you have the res settings in place, you just press Roll plus the pad for the drum sound you want to roll, and... Presto!!

Regarding the sounds - well, dude, the only optio you have is to try to get hold of the ROM cards... but they're "unobtanium", and impossible to find. Another option (which I resorted to) is to buy a JX-305, and spit the R8 MIDI out into the JX rythm part. It sounds great in the mix, and I get a wicked cool keyboard to boot.