Marc Romboy is selling his signed Roland TB303 for charity, Its signed by me as well as many artists including Carl Craig, Seth Troxler, Chris Liebing, Dubfire, Agoria, Stephan Bodzin, Robert Babicz aka Rob Acid, Oliver Huntemann, Dave Clarke, Nick Curly, Dennis Ferrer amongst the names. get bidding..:) http://www.ebay.de/itm/301041560942