Hi, I'm looking to explore Garage Band a little more. To know where I'm coming from, I played a little keyboard and guitar in college, but really haven't done much in 10 years. The wife is interested in learning how to play and the kids are getting to the point they'd like to bang around on something. I've really been twitching to get back into the music and I'd like something with more keys than the 49 on the one Apple pushes. Has anyone used any other USB Midi keyboards with Garage Band and what did you like? Thanks.