I stumbled across a program that chops up your huge huge images and creates the code to use the Google Maps API to display them just like a Google Map.

You can scroll, zoom, drag, everything. All with about 5 clicks.

I uploaded my first test here in case anyone wants to see it in action.

http://www.davidpiercey.com/test/

The program I used was from here:

http://www.casa.ucl.ac.uk/software/g...magecutter.asp