Okay, this is what is figured out. I will have an overflow bring water down to the tank through PVC, then have it go through the sump/fuge and protein skimmer (is ASM mini-G, AquaC Urchin Pro w/ Mag-Drive 3, Corallife super skimmer 125, or Turboflotor T1000 going to work best for me?). Then, I will have return pump bring the water back up to the tank through more PVC. Any suggestions on the best return pump?