I think canisters are the go-to for that size tank. I haven't tried 'em yet, but I do have one for my 75 gallon that I'm setting up (if only hubby would get on building the stand...).
I hear good things about Fluvals, Eheims, Renas, and Marineland Magnums. From what I understand, the newer Magnums have more media compartments than they used to.