Aeclectic.net is definitely the place to go. you can browse by theme, see pictures of the decks, read reviews... all kinds of things :)

I use the Ancient Egyptian Tarot pretty much exclusively.

here's a comment I made about past decks I've used. the Ancient Egyptian tarot is the one that made everything click for me because of the imagery and my developing relationships with those deities. if you can find something that really speaks to you, it will help you out a lot :)