tub

Does anybody have a good source for food-grade plastic tubs or bins? I'm looking for something that will hold at least 10 Gallons, maybe up to 15. Ideally round with rather large diameter (for easier dumping of the dough), Rectangular would also work. My two options locally are 50 bucks for an 18x24x9 inch tall rectangular tub (+ 15 bucks for a lid), or a 10-Gallon Rubbermaid trash can for 20 bucks (and a few more bucks for the lid).