This demo page illustrates how points on an AutoCAD map can be viewed on Aerial Photos and Topo maps - without ever hooking up a GPS unit to the computer:
A path or series of points can be pre-planned in the office by overlaying them on a digital map
The coordinates of the points can be created
The bearing and distance between the points can be calculated
Shown in an ACAD Viewer If you don't have the ACAD Viewer, it will be installed automatically (it's SAFE and FREE - just follow the prompts) this is COOL!