Anyone Have/Build A Plywood Tank?

[rastaangel]

Up until now being a glazier I have never even thought about building a plywood tank... Until today when I dropped a fish off that a few reefers place and seen here 2 nice plywood tanks which really got me thinking...
First off it would be far cheaper then my cost of glass, and working at a glass shop I get it at cost
Second a sheet of 1" plywood weights less then half what a sheet of 12mm glass weights and having to hold a huge glass tank above your head to get it in your place sucks
Third plywood is alot harder to break then glass... Thats obvious
Forth it can also be mechanically fasten which means the tank can will be far less likely to fail at the joint
I have done some google searching and found a few resources and have come to the conclusion it would be a ok option but I would like to hear from some people that have plywood tanks or have built them before I even plan this undertaking.