For the next 12 days you can get 3 Lexar 16GB Platinum II 200x compact flash memory cards for only $99 at Adorama. If that price isn't tempting enough they are offering free shipping and are throwing in a free memory card wallet too.Not only are these cards fast, they also hold a lot, one card will hold 3,200 16MP images (or 2,300 21MP images). Video your thing? One card will hold up to 6 hours of video.
To give you some perspective on just how good this price is their competition is selling the exact same memory card at $87 for a set of (just) two. Plus shipping and no wallet.