most of you probably already know about this site, but i just can't express my love enough for kayak.com. it's certainly the best and snazziest site i've found for looking up cheap airfare. what it is is basically a compendium of airfares from all the sites - you just search your point of departure, destination and date, and it'll list the best prices from across the web. its buzz feature, which incorporates google maps, like anything cool these days does, is also kinda neat.