Okay, the job's done. I had two broken wires in the rubber boot between the driver door and body panel.
[img=http://img35.imageshack.us/img35/2383/p1030937.jpg]
To get to the boot, you have to take off the front quarter panel. You break a few push fasteners trying to get the wheel well protector and lower leg protector off of the car, so plan on buying some extra fasteners at the parts store.
The boot is in two pieces so it is simple to move it apart to expose the wires. Be carefull when you disconnect the harness end off of the door as forcing it may break more wires. Since we have the same model year car, I can tell you that the wires seem brittle. I don't know exactly how mine broke - from the damaged ends I can guess that they got fatigued from the years of opening/closing the door. There were also more wires that had breaks in the insulation/cover so I applied some good electrical tape over the areas to protect them from spliting.
I was able to splice the damaged wires with some pigtails of the same gauge wire and close the ends with solder and tape. Fortunately, none of the wires had come out of the harness connector that attaches to the door. I wouldn't know where to find a replacement connector or parts for the connector other than a junk yard. The job took about 3 hours from start to finish -- remember, I also had no working windows so I was checking the window and door lock functions along the way to reassembly.
End of story: I have working windows, working power locks on all doors, and the keyless entry feature is now working again.