second that, you can also get the midex 3 used on ebay at times, 1 in 3 out, turn on system time stamp in midi options...
instead of using the editor to tweak the rythym, hard quantize everything, make separate midi tracks for each sound and use the time slide in the inspector, if you hold shift i think it switches into fine mode, get ur groove happenng there
good luck
Prahlad