Here's a couple more alternatives to the Ecotech pumps.
http://www.reefsupplies.ca/canada/jb...-kit-1600-gph/
http://www.jlaquatics.com/product/wp...maker+Kit.html
I have the Coralife DC 5800 (2 X 2900 gph pumps and controller) in a 100g, and it is plenty of flow for that tank. It has 4 modes with adjustable speeds and pulses for different flow patterns. Also, it comes with a light sensor that dials down your pumps to the low speed at night. Works pretty good, and gives my fish and corals a rest. I use the Koralia magnets (they fit perfectly) instead of the suctions cups (around 13 bucks to replace). And Coralife gives a lifetime warranty on these.
http://www.coralifeproducts.com/File...structions.pdf