mwave offers the Kingston 4GB microSDHC Class 4 Secure Digital High-Capacity Card with Secure Digital Adapter, model no. SDC4/4GB, for $5.99 with free shipping ($1.50/GB). That's a price low by $1 and among the best total prices we've seen for a 4GB Class 4 microSDHC card, although it was a buck less a month ago.