Hey all, I fiddle around in garageband. Lately I've been getting into it a lot. I started making my own hip hop album. On apple.com I stumbled upon this- http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore?productLearnMore=TC834LL/A is it any good? Its kinda expensive. What I want to know from you guys is would you consider its worth me spending that money on this piece of hardware? Can anyone who used it give me a quick review please.