I'm in the middle of setting up a double show tank setup. The mainfloor tank will be a 125 gallon dual overflow (brand new) and the tank(s) in the basement will be a 70 gallon single overflow with a 75 gallon DIY baffled sump.
So far I'm only as far as having sanded down my old 125 gallon formerly painted black pine stand and refinishing it. I have begun piping the 125. The 70 gallon is currently running by itself but, will be added into the mix once the 125 is up and has finished cycling (as all of my LR, LS, Corals, and fish are residing in the 70).
Here's a few pics and I will be adding more later as I continue to progress with the build.
Jason
http://thereeftank.com/forums/showthread.php?t=101370