I say talk to Fran on the M-Audio because everything I'm going to say on M-Audio isn't good because they have such a high rate of customer returns due to extremely poor quality control issues.

Fran likes them..., but I've also used many of them as well. I also know people who own them and the complaints are always the same. Shotty construction.., keys failing, the list just goes on. I will say that I know quite a few people that have dropped M-Audio and went with Novations line. I know a few who have the Roland PCR series and love those.