As one of its daily deals, Best Buy offers the SanDisk Pixtor 32GB Class 10 SDHC Memory Card (pictured), model no. SDSDU-032G-AB46, for $18.99 with free shipping. That's the lowest total price we could find by $2. It features read speeds of up to 40MB/sec.

Also available is the SanDisk Pixtor 64GB Class 10 SDXC Memory Card, model no. SDSDUP-064G-AB46, for $37.99 with free shipping. That's the lowest total price we could find by $5. It also features read speeds of up to 40MB/sec. Both deals end today.