I have a drum template set up in Reason with the stock sounds.
Kick = BD1 1 OHS
Snare = SN 1 OHS + Rim4
Toms = Tom1 1RKT, Tom2 1RKT, Tom3 1RKT
Cymbals = Cym3 1OHS, Cym1V2OHS, Cym1 1OHS, Cym3 1Jazz, HH1fot1, HH1V1RKT, HH1 2 RKT
Make your sounds sound like they are part of the same kit and use velocity for dynamics. Program it like a real drummer would play (he only has 4 limbs...)
examples with the above setup at
www.myspace.com/nightgallery08