Newegg offers the Rosewill USB 2.0 Card Reader, model no. RCR-IC001, for $7.99. Apply coupon code "VCO" and checkout with Visa Checkout to cut it to $7.19. With free shipping, that's the lowest total price we could find by $4. Features include a USB 2.0 hub, internal memory card reader for a 3.5" bay, and compatibility with CompactFlash, Memory Stick, MMC, and Secure Digital cards. Deal ends August 25.
Note that the above coupon can only be used once per account.