How many channels do you need? The MPC1K features a multi-track sequencer. If you just plan to do monophonic sequences then the Kenton Pro Solo may be fine, but if you want to get the most out of the MPC1K then that's probably not the right choice. FH-2 is great, but if you're looking for something less expensive, Avon Synth makes a 4-channel converter that is simple and gives you velocity outputs in addition to pitch and gate. It's a 10 hp module though.