theres some info in my build thread for my cube,
http://www.canreef.com/vbulletin/showthread.php?t=45915
pictures dont really do it justice cause the rocks in the tank blend in with the background in the pics but in person it really looks nice, looking at 12" of nasty glass wall covered in crud always kills the look of a nice tank, even though it can be a bit of work the rocks on the back wall looks way better as far as im concerned,only annoying thing so far is every hermit in my tank is now living in my overflow.