I got two 55 gallon blue barrels today for $15 a piece at Eastern Nishikigoi in Westminster.
I had them add a 1.5" bulkhead towards to bottom so I can add a ball valve for easy drains. They added the bulkhead and than melted the plastic on the barrel around the bulkhead. Its a nice clean bead that is waterproof. That cost me an additional $15 per barrel.
Eastern Nishikigoi
14700 Goldenwest St.
Westminster, CA 92683
714-895-7998
www.enkoi.com