The most enchanting tarot deck we've ever come across is made by The Wild Unknown. Kim Krans' illustrations are striking and beautiful. Even if you don't read tarot cards, this deck is nice to have around just to look at. Pick up a card (any card), and you're likely to be moved by the image on it. Get the deck (from our friend, Covet + Lou) here.
If you're curious about reading tarot cards, there's a guidebook to accompany the deck.