Here's the previous thread (even if you don't get ideas from it, it's a fun read):
http://www.greekchat.com/gcforums/sh...ad.php?t=36705
If you want to go New York, maybe you could try outfits that follow the different aspects of the city. (I don't have a clue as how to do this but someone else might.)
Be careful with the "coffeehouse" concept as it's very easy to lapse into parody.