Yea I highly recommend the AquaClear filters, cheap, quiet, durable, and the best part easy to clean, oh yea and not 'in' the tank.
Fenris I just bought a jebo 508 and it's fine, just a low hum but still quiet. Not enough to keep me awake or anything.
It's best to have over than underfiltration that's for sure, but not so it's blasting your fish out of the water or anything. 5x your tank volume per hour is recommended.