never used canisters before, they are too expensive for me, i just use huge HOB fliters. i think to emperor 400s are plenty good, thats what i plan on using. just make sure that your getting at a filter GPH of at least 10x the volume.
I've started up my build so I think I'm going to create a separate new "build thread" in the general section -- if you folks out there get a chance to check it out, would definitely continue to appreciate comments / feedback.