I'm on Long Island, which isn't really a great place to own a firearm - the soccer moms are out of control here! As for modifying the gun, I've been looking through the forums here and I'd really like to add a pistol grip, 30 round magazine and a new handguard - it could take me a while to figure it out, though. Thanks again for all your input.
Oh, and the Kalashnikitty picture pwns.