you can also consider any of a variety of large plastic containers. While there is some concern about oxygen permeability, you won't be doing long term storage in them so that becomes a non-issue. Here is probably your best bet for that type of fermenter. http://www.usplastic.com/catalog/va...ry_name=20726&product_id=3863&variant_id=8551
I use a 14 gallon Tuff Tank from E. C Krause as a primary fermenter, then two 5 gallon gless carboys for secondary. Works great. I also use the Tuff Tank for bottling.