New Tank, all the toys looking for everyone's input!

[Gizmoh]

Alright!

Thank you rogue for the response! I took a look at that one the avast and the Geo Kalk reactors and I think I have settled on the Geo! So the only thing I still need to pick out is the heaters and chiller!

I did need a little input on my tank though. I am getting ready to order the tank and am wondering about the overflow. The tank is going to be viewable from the sides so I don't want to do dual corner overflows but I am worried just one in the center won't allow for enough flow through the sump and refuge. Are these concerns invalid or should I do dual center overflows for 2 returns and 2 drains? Again the tank will be 48x30x20, and I would like to use the Tunze silence pro for my return pump.