Adorama offers the Joy Factory SmartFit2 Case for Apple Pad 2 in Smoke (pictured), model no. AAD117, or Clear, model no. AAD116, for $8.99 with free shipping. That's the lowest total price we could find in either color by $7. This polycarbonate snap-on case features camera, speakerphone, and microphone openings; it's compatible with the Apple Smart Cover.

Note: Per the questions section on the product page, this should work with the new iPad.