record in a room that actually sounds like a room - with real and natural acoustics, not too dead, not too boomy - this makes a real difference as it brings the recording process closer to a real performance - don't let the engineer put the drummer in a booth; don't wear headphones; if you are doing muilti-track, record "live" to multitrack, with enough separation to make track level adjustents in the mix, but without so much isolation that it sounds like everybody's in a different room (and if you have a good engineer, "phasing" from microphone leakage will not be a problem) -