I think Seth may have totally changed my mind. Ive been looking at the one the he recommended and I think I may go with the sc150. I would rather have the bigger skimmer since my sump will eventually be an additional 20 gallons to my 55 gallon setup. Every review that i have read of the sc150 has been awesome and no one has had anything bad to say about it. for $120 thats hard to beat. Thanks everyone!