In case anyone with the MicroTracK II is interested, I recently sold mine (for personal reasons, not dissatisfaction). I've got a Denecke PS-2 and AD-20 set that I paid $450 for back in April, used 5x at my bands rehearsals, that I'm selling for $200.00. It's really a terrific deal. The AD-20 produces far superior sound to the internals in the MicroTrack. Both going for about $125 less than the cost of the AD-20 alone.
The thread with my contact info is in Recording Gear and Yard Sale forums now.
Thanks,
Dan