Watever, I'll be in Austin a few times this summer, let me know if you want help setting up. There are some really good deal on craigslist there.
Anyway, yes canisters are a bit more for the initial setup, but they have quite a few advantages that make it worthwhile.
The are quiet, since the pump is usually in a cabinet and the hoses are already underwater, no splashing.
They are relatively maintenance free. I recommend that you not go with the biweekly cleaning, I clean mine every other month and it's just fine.
They don't smell. There's no cleaning medium that is exposed to air, so they can't stink up the house.
If you want a 55g tank, then a Rena xP3 would the right size. I've got one on my 55 and it's perfect.