First post, excited to play!
welcome aboard. We're a friendly bunch (for the most part), so check out the forums and feel free to ask questions.
Welcome!! There's a sticky post on the top of the Welcome forum that has a list of veterans who will gladly accept offers from new players so you can get your feet wet in a couple of private games (that don't effect ranking) before you brave the deep waters of public games.
http://www.wargear.net/forum/showthread/1542/Invite_Me