Just a little something to keep you busy if you're waiting, the 3G won't work with any version of iTunes except the latest, version 7.7 If you haven't yet, download it & have it installed by the time you bring your phone home & save yourself the hassle. Momentary freakout when I saw the window come up and say the phone won't work with this version of iTunes

, then I read further & was directed to upgrade. Whew!
Of course, halfway through the download, Vista decides to update afterbeing told to postpone, thereby shutting the computer down to restart. Start from scratch. (In best Charleton Heston voice,...)
"Damn you Vista! Damn you to Heeeeeeellllllllll!"