Guinea Pig Supplies...?

Hi! I am getting two female guinea pigs in March. I was wondering what supplies I need for them, I know they need pellet food,timothy hay (alfalfa is not good for adults) and I was wondering if their are any links for good cages from petsmart or petco because im not sure I have the room for a huge C&C cage. Also do guinea pigs smell if you clean their cage once a week? Any links for good toys or hideaways from petsmart or petco would be appreciated Thanks!