Ok, I've looked long enough. This thread is gonna list all of the misc. adapters and cable for the Dell Axim X5. Also, if anyone has schematics of the connector port, please post them.
Here's the current lineup:
Ratoc USB 1.1 Host CF Card
Ratoc Serial I/O CF Card
Dell Axim X5 Bottom Connector Schematics
Homebrew Dell Axim serial port, Garmin GPS cable, and more detailed shematics
Twin-Paradox Solar Express Dual USB Port powered CF Card (Will they ever release this?!!)
If you know of any other good sites, please post them.