I actually got the drums for the class from Dayton Industrial Drum. $30.00 each. They burn them and then use ball bearings to clean them out.
I just finished cutting the fire grates out of 9gg 3/4" expanded metal. 3 1/2 hours of cutting and cleaning with a oxyacet torch. It might sound like a lot of work, but it's really a lot of fun. Not that I need anything else to do right now....
Chinesebob - Central Ohio
A Chinese speaking white guy in search of the perfect bbq.