--- You wrote: On utterly unrelated vein, are any of you aware of a cheap GPS box with USB output supported by iBook? --- end of quote --- I havent tried it but i believe Delorme's Earthmate USB version will work with Delorme Street Atlas 6, and probably most standard GPS mapping programs. It will run you about 100-150 bucks on Ebay I think. Personally, I used a $100 Garmin Etrex with a serial cable and serial-usb adapter with my iBook with no issues. I'd suggest getting the Belkin USB adapter. Al