Is your tank drilled? If so, I'd go with a sump. If not I'd go with an HOB like an AC110 (or 2). Or if it's not in your living room, a dump filter (basically a sump on top of your tank, with water pumped from the tank and gravity return to the tank).
I'm not really a fan of canisters. Any of the ones mentioned are good. Just a PITA to clean (vs. HOB), which (in my experience) I won't do as much as needed.
I wouldn't do anything involving an undergravel filter, either.
What kind of SA's are you planning on?
Matt
Hey Matt, thanks for the reply. The community will be created around a group of angels. At first I was going with several schools of tetras, but I've since changed to considering small groups of 2 or 3 types of cichlids. These are whats on the list for consideration right now; flag acara(aequidens curviceps), golden dwarf cich.(nannacara anomala), keyhole cich.(cleithracara maronii), cupid cich.(biotodoma cupido), and festivum(mesonauta festivus). A large group of corys will complete the neighborhood.
Please feel free to make suggestions, what you would toss out, or add to the options.
Since nearly everyone has negative comments concerning UGF, and I have no overwhelming conviction toward it, that may likely be out! Here is the set-up as my minds-eye sees it with everything considered. Pool filter sand substrate with a dark gravel-bar or two. A couple of large rock formations. Cedar driftwood(any comments on the wood type?). Random groupings of swords and crypts.
As always, everyones comments are much appreciated. Barry