I have a 29 gal biocube, that I removed the baffles from, drilled, and is almost ready to go.  21.5" L X 20.5" W X 29.5" H.  My vision was to have it overflow to a sump.  I'm in Loveland, tank is in like new condition (minus the drilled holes, lol).  $75
My wife has been on my case to get rid of some fish stuff, collecting dust in the basement.