Personally, I like having a jumpdrive that I can switchout the cards with anything that I'd like. I use this:
http://www.amazon.com/gp/product/B00008 ... c&v=glance
Lexar JumpDrive Trio, it takes 3 different card types. There is a newer one that takes something like 4-6 different types. I like these because they are 100% portable. I can move info from my laptops to my PCs without a problem...even on the 1.1 USB drives.
By getting the PCMCIA version, you have limited yourself to laptops only.