I was also with HighCountry. After getting their out-of-business notice, I went with Yellow Fiber.
http://yellowfiber.com/shared.php
They have some small plans like 10GB for $4.95 and 50GB for $9.95. I've got the Business Class package which is 280GB for $19.95.
The guy that runs Yellow Fiber posts over at the AskDamageX forum under the name "Spudstr". That board seems to specialize in TGP owners and gallery submitters. So I'm sure he can answer any questions you have about running autogallerySQL. Here's a link to his AskDamageX profile:
http://www.askdamagex.com/member.php?u=1311