"Recording real drums is a science in itself. You need several microphones, a multitrack interface and some knowledge as to how to position the mics. Using software or real instrument loops is a lot easier ...
Digital drums are easier too - you can trigger GB's internal sounds with them using a midi to usb interface. If you have a digital set, that's probably the best compromise - having a real drummer, but avoiding the technical problems of drum micing."
I find myself usually using a combination of both. As CD noted above, you can't just slap a mic somewhere around the set & expect it to sound like the big boys. (However, you
CAN get some intersting sounds like that...)
Part of the problem is that the initial cost of drum specific mics can be prohibitive. That being said, you can get outstanding results w/ 4 mics-B/D, S/D + an X/Y overhead pair. Or use the Glyn Johns 4 mic method. No shortage of info out there, do a Google search.
While great strides have been made in the drum (& guitar amp/effects) modelling realm, nothing really "feels" like a real set (or amp, or...) moving air through a mic. It all boils down to budget & level of commitment (and time, of course). Keep us posted.
-d
.