Welcome to the club, Asa!
If you haven't already, you might want to read the enTourage forum posts about using your mobile broadband modem. I think some brands don't work with the Ermine (Froyo beta) upgrade?? Anyway, might be worth a look.
http://www.entourageedge.com/forums/forum.php
You will be able to make a mighty cool little book for yourself, I think.