There is a place here that sells supplies for making biodiesel. Thought these would make a cool u.d.s. lids till I saw the price. They also have drums for $ 20 !! look new. So if there is a place in your area that has one of these biodiesel places ( maybe just a cali. thing but dono ) check it out for cheap drums !!
http://bayareabiodieselsupply.com/st...d&productId=17
http://bayareabiodieselsupply.com/st...d&productId=17