legodude, look here:
http://www.streamlinecpus.com/store/it's the last item at the bottom of the list, is USB "Host" cable.
For a "regular" USB cable, (like the one you use to sync with) I'm using the one that came with my Palm Zire 72.
The USB port on the back accepts both kind of cables. The "Host" cable is wired differently than a "Sync" cable. The Zaurus "knows" which cable is inserted. If you look at it when you get one, you can see the difference in the connector
In the pic the "A" connector is on the right, (It's the host connector)
The regular one like the one you get with a Zire 72 is on the left. "B" connector.
Jon