http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=170192014645&ssPageName=STRK:MES E:IT&ih=007
Check out this site for the controls. The guy has schematics for the build it yourself guys, sells parts, or sells complete packages. I talked to him at the Midwest Energy Fair in 2007. Has some neat designs.
http://www.redrok.com/electron.htm#led3xforsaleI wish I was smart instead of so darn cute