If you are in the market for Compact Flash and other memory media (including desktop RAM), you might want to visit Alpha Memory. They carry the Transcend brand of Compact Flash cards that are some of the fastest on the market. I tested their media with my digital cameras and Pocket PCs and wasn't disappointed in their performance at all.
As a favor to The Gadgeteer readers, you can get a discount on their 256MB CF cards. Regular pricing is $59, but if you visit through this link (not an affiliate link), you can get one for $55. Not a huge savings, but hey, every little bit helps right?