I am almost done aquiring all of the supplies i will need to set up my 120g. Originally i was going to use a Mag Drive pump in the sump, but i just bought an Oceanic 150 wet/dry from someone that i work with and there isnt enough room in the sump itself for both my skimmer pump and a magdrive, but it is drilled to accept an external pump. What is the best external pump for the money? I've been looking the Pentair Lifeguard QuietOne 5000, but i don't know much about externals i have always used mag drives. I want to push about 1200gph.