Mcdsp Analog channel 2, and in Parralel Ananlog channel 2 on 7.5 ips and spanked, and maybe a Smack! or some other nasty compressor on just the kick snare and toms, have been demoing the Waves Kramer PIE though and that is a BRILLIANT compressor.
right now the only thing I'm using on the drum bus is the Waves SSL comp. Everything else gets tweaked on the individual drum tracks. Still undecided if I want to parallel compress my band's current project.