Chicago Brewings

Hey all,
The inaugural Chicago-branch brew has been sitting on the shelves for two and a half weeks now and it tastes great. It is called "The Critique of Brew Reason" in honor of Immanuel Kant. A solid American Ale: not too bitter, not too sweet, but definitely both. This was the first time i worked with actual hops rather than pellets, and i can taste it. Nice work all.
And now its time to make some more. We traded a six pack with some friends and are looking to expand our markets (bartering), but we need some to drink for our self, no? Wu and i are thinking about doing a dry hop this time. So my questions are thus:

(1) What are the best beer types for dry hopping?
(2) What are the best hops to dry hop with?

any advice would be greatly appreciated.

peace