I was in a similar situation as you once...buy an eheim. 1250=315gph, 1260=600gph, and 1262=900gph. They are so silent that you can sleep with your ear on the pump housing and hear nothing but the swoosh of water going through it. I had to have one next to my bed for a while...worked like a dream. I am fully confident in saying that eheims are the quietest, most reliable pumps made. They are worth every penny.