Buy.com offers the SanDisk 16GB Cruzer Micro U3 USB 2.0 Flash Drive
, model no. SDCZ36-016G-A11, for $29.95
plus free shipping
($1.87/GB). That's the lowest total price we could find by a buck. (We've seen it for less, but not since last summer.) This retractable flash drive is ReadyBoost-ready (for Windows).