JadedTraveler

I know there's an inexpensive (~ $60) SOHO router from Zyxel that will allow you to do this, at least what I think you what to do:

Windows PC <> WiFi HotSpot <=== VPN ===> Home Router <--- Public Internet --->

The key item here is Windows XP comes with a VPN client that works with this, so no additional cost to obtain a client or security certificate. Look on the zyxel.com website for documentation on their P334 or P335 Broadband Router.