1 44pin Compact Flash adapter (Ebay is the best place for this - seller kitty.wun <-- name dropper hehehe).
I've been seeing these recently in large computer stores (Microcenter here in the US) for cheap. May be a good alternative to ebay if you can get it local.
I was all excited to try the Flash mod until I read that Compact Flash drives begin to get corrupted then completely fail after several hundred thousand write/erase operations. I'm not sure how that compares to a disk drive, but I have IDE drives that are over 15 years old and still work fine, and I'm pretty sure they've had more than a few hundred thousand writes or erases. Anyone have any more detailed info comparing the two options?