http://rpg.drivethrustuff.com/product_info.php?products_id=80190Basically, it's on sale (as of April 8th, it may change) for $0!
It's a starter edition, but it contains everything you need to play. Plus, did I mention it's free.
Important note: You will need to make an account to download this. It is then necessary to check the order e-mail or go under "My Account->My Orders" to get the tables and sample adventures. Otherwise, the game is unplayable, due to Character Generation Critical Failure (or, alternatively, critical failures in a lot of aspects of play!).
Drive Thru RPG also has a ton of other free stuff, but this is a temporary? offer. Not sure if it's available for everyone, it might just be for us in the States.
EDIT: Oh, by the way, it's normally $20.
