Book
I've been using the "Link method." A fantastic book is "The Memory Book" by Harry Lorayne and Jerry Lucas. It should be in the Psychology/Self-Help section of your local Border's. The book has a section on memorizing playing cards.
Basically, you give a name to each card. For example, Ace of Spades is "suit", 8 of Hearts is "hoof", and 5 of Hearts is "hail." Suppose these three cards come out in that order. You picture a suit with something in your environment: picture the dealer wearing a suit on his head. Then make a picture using a suit and hoof: picture a horse with a suit on. Then make a picture using hoof and hail: picture horses raining down.
So to recall, look at the dealer, and you remember the word "suit." Then keep going down the list...
The trick is to make the pictures in your mind as silly as possible. The cards are no longer abstract ideas, but vivid images. Using this method, you could memorize an entire deck quickly. I've been practicing for a few weeks, and it definitely works!