[linux-audio-user] suggestions for USB/serial/PCMCIA MIDI interfaces ?

Greetings: I'd like to gain some hands-on knowledge on setting up a MIDI interface from my laptop to external gear. eBay lists a lot of USB MIDI interfaces, but I'd like to know what users on the list recommend for an inexpensive 1x1 or 2x2 box. I'm also looking for a serial port interface, probably one of the Key Midiator boxes. There's one on eBay now, but I'm being outbid on it by someone who obviously wants it more than I do. If anyone has one to sell please let me know, and I'd also like to know of anyone's experience with the Midiator. Finally, is there such a beast as a PCMCIA MIDI interface card ? Audio cards I know about, but I don't recall ever seeing such a creature as a PCMCIA MIDI card. TIA! dp