these are what bigals sell
http://www.marineland.com/sites/Mari...=3600&mid=3228
the biggest problem for me is the 27" depth, the 48x36" size is ok but has dual overflows and that can be a pain,
also if you put the overflow in the back corner good luck ever cleaning or catching fish from in thier with a 48x48 tank,unfortunately you would have to put it on one of the ends probably back left.
my tank is 48x24x28" and the 28" tall really gets to me everytime i drop something or need to pick up a frag also my overflow is in the back middle and i have to get on a ladder and hang way over the tank to get in that overflow so ill be shure not to do that ever again if i dont have to.
i would build a nice custom and maybe get a nice stand built but your probably gonna be $1200-1500 just on a stand and tank, by the time you have this done i might have mine started so ill have that other 8bulb tek light you need.