To elaborate on the cleaning aspect of the aluminum pot I will give you my procedure.
After boiling I rinse everything out of the aluminum pot with my garden hose. Then I rub the pot down with my hand and a little dish soap and rinse it out again. To dry it, and this is the important part, I dry it off completely with a shammy.
I've read that aluminum pots have a tendancy to rust if even a puddle of water is left in the pot, and/or will make the pot brittle in the area that the water sat.
Bottled: Oatmeal Porter, Double Chocolate Chipotle Porter
Kegged: IPA, Red Rye