PolyTek's ez-flo 120 they also have given me great customer service and reduced prices for first time orders of a specific product.
http://www.polytek.com/cart/index.php?target=products&product ...
i hastily built a roto-caster a while ago in college but haven't tested it out because i was waiting until resources became available to buy a motor and variable speed control (still haven't). I'm won ...