B&H Photo-Video offers the SanDisk Extreme HD Video 16GB Class 10 Secure Digital Card, model no. SDSDRX3-016G-A21, for $25.95 with free shipping. (Adorama via Amazon offers it for the same price.) that's $1.62/GB, $4 under our mention from two weeks ago, and the lowest total price we've seen. (It's also a current price low by $9.)