Getting a solid answer on a recommended filter is hard. I absolutely love my two fluval canisters (305 and 405), they're super quiet and do a great job. Alot of people also like the rena xp canisters, though i've never tried one. I've also got an eheim canister, and although it does a great job, I hate the way it goes together, and is sometimes a pain to prime (not to mention they're very expensive)...
"What, exactly, is the internet? Basically it is a global network exchanging digitized data in such a way that any computer, anywhere, that is equipped with a device called a 'modem', can make a noise like a duck choking on a kazoo." - Dave Barry