Meritline offers the Kingston Ultimate X 16GB SDHC Class 10 Secure Digital High-Capacity Card, model no. SD10G2/16GB, for $25.99. Coupon code "MLCK916PKNL1" cuts it to $20.99. With free shipping, that's $1.31/GB and the lowest total price we could find by $4. (We saw it for a buck less just over a month ago, since expired.)