Sandisk is offering rebates on all their Extreme III memory cards, SD, CF, Pro Duo.
The more you buy the more you get back. You get can 2 4gb SD for around $9 a piece. Its a mail in rebate and you can get a Adorama gift check or Visa gift card.
http://www.adorama.com/pdfs/rebates/...pdf?kbid=62905
Can order from Amazon, Adorama, Beach camera, etc.
http://www.amazon.com/SanDisk-Extrem...8135201&sr=1-1#
http://www.amazon.com/SanDisk-Extrem...8134996&sr=1-2