mwave offers this V7 4GB Class 6 SDHC Secure Digital High Capacity Card, model no. VASDH4GCL6R-1N, for $4.99 with free shipping ($1.25/GB). That’s tied with our March mention of a similar card as the lowest total price we’ve seen for any 4GB class 6 SDHC card. (It’s a current price low by $1.) It features read/write speeds of 6MB/s.