Buy.com offers this Kingston 16GB Class 4 microSDHC Secure-Digital High Capacity Card, model no. SDC4/16GB, for $13.95. This $5 mail-in rebate cuts it to $8.95. With free shipping, that's $0.56/GB, $6 below our January mention, and the best price we've seen for this card. (It's also a current low by $5.) It includes a full-size SD card adapter. Rebate ends March 21.