I've been tempted to pull the trigger on a few of these: http://www.reptilebasics.com/reptile...ics-ve-6-rack/

Looks like the tubs it uses are longer and the price isn't as steep. You can also add casters and there's a work table that goes between levels if you stack them, which is a feature I really love.

If six levels is a bit much, they also have a 2 level version.