One custom made 18 gallon conical, one 12.5 gallon MoreBeer professional series conical. Glycol chilled, and electrically heated. Can hold the temperature to within 0.2F of set temp.
This is a combined project between me and Zeeboz. We proudly present:

Full build:
http://www.flickr.com/photos/yeastmeister/sets/72157615372400032/