http://www.kickstarter.com/projects/...di-controller/
First off I have no affiliation with this, just something interesting that I wanted to share.
Its only $50 but you have to pledge it to his project, you don't pay anything if he doesn't reach his goal. (Not sure if you guys know about kickstarter but its a legitimate site)
Oh and its arduino programmable!
Looks like its worth $50 to me, might try and get my hands on one.
Synthtopia did an article on it as well
http://www.synthtopia.com/content/20...di-controller/
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