You can get SQL Pocket guide cheapest at buy.com, save a big 57 cents over Amazon and $4.32 over bn.com. See:

http://www.alienegg.com/lowest-price-finder.php?ur l=http%3A%2F%2Fwww.amazon.com%2Fgp%2Fproduct%2F059 6526881%2Fsr%3D8-1%2Fqid%3D1155763169%2Fref%3Dpd_b bs_1%2F104-7793304-3639161%3Fie%3DUTF8