B&H Photo Video has this 64GB Flash Drive for: $139.95

Final Price: $139.95 (with Free Shipping)

1-Touch Backup. Retractable Connector. Password Protection. AES Hardware Encryption. Windows and Mac Compatible.
Mfr#: SDCZ40-064G-A11 / SDCZ40064GA11

Newegg.com has this 8GB Flash Drive for: $18.99

Use Rebate: $7 [Use this Rebate Form expires: 03/31/2010]
Final Price: $18.99 - $7 = $11.99 (with Free Shipping)

Hi Speed USB 2.0 Compatible (backwards compatible to USB 1.1). Easy plug and play functionality Driverless in Windows ME/2K/XP, Mac OS 9.x, OS X, Linux with USB storage support.

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Mfr#: PSF8GUSB

Meritline.com has this 8GB Flash Drive for: $16.95

Final Price: $16.95 (with Free Shipping)

This eye-catching USB flash drive-C803 is the most convenient USB 2.0 flash drive designed for consumers who aspires easy-to-use digital storage. The compact size enables C803 be slipped into the pockets, purses or handbags easily. The special cap design can guide user to plug the cap at the bottom of body while data transfer and solves the USB cap-lost problem perfectly.
Mfr#: AC803-8G-RBK / AC803-8GRBK

Newegg.com has this 16GB Flash Drive for: $49.99

Save: $5(Instant Discount)
Use Rebate: $15 [Use this Rebate Form expires: 03/15/2010] (Original UPC)
Final Price: $49.99 - $5 - $15 = $29.99 (with Free Shipping)

Plug & Play functionality in Windows Vista, XP, 2000, ME, Linux 2.4 and later, Mac OS 9, X and later
Mfr#: CMFUSB2.0-16GB / CMFUSB2016GB

Buy.com has this 16GB Flash Drive for: $32.98

Final Price: $32.98 (with Free Shipping)

Introducing Kingstons DataTraveler 102 for quick and convenient storage, sharing and transferring of data. In capacities up to 16GB, the new DataTraveler 102 can store your favorite photos, music, school assignments and reports. It lets you carry all of your data with you, making it ideal for the office, home, school and wherever you travel.
Mfr#: DT102/16GB

Gift Certificate available at Buy.com

OfficeMax has this 4GB Flash Drive for: $27.99

Save: $13(Instant Discount)
Final Price: $27.99 - $13 = $14.99 (with Free Shipping)

Cruzer 4GB USB Flash Drive, Experience portable storage with a SanDisk Cruzer USB Flash Drive. Why leave your photos, videos and music at home when they'll fit in your pocket. Trust the minds behind flash memory to make it easy to store, transfer and share your digital files wherever you g
Mfr#: SDCZ36-004G-A11 / SDCZ36004GA11