This deal has ended.
Newegg has the 16GB OCZ Diesel Flash Drive on sale for just $15.99 after this $10 mail-in rebate (through 2/16, though price may change before then). This connects via USB, comes with a limited lifetime warranty, and has received 4 out of 5 from over 220 buyers. Shipping is free and there is no sales tax (except CA, TN, NJ). Also check out this 16GB Corsair Flash Drive for $20.99 at Buy.com after a $20 mail-in rebate.