The best ones are the VST types like Battery. You can just about place any rhythm you want by just linking mdid fies into them..:''
ie:
/Volumes/750GB HD 2/MIDI Files/Gary Numan - Cars [met teks.mid
/Volumes/750GB HD 2/MIDI Files/Michelle (Rubber Soul) [met.mid/Volumes/750GB HD 2/MIDI Files/Norwegian Wood (Rubber Soul.mid