I have been twice and got some pretty darned good photos with a Nikon D70 and an AF VR-Nikkor 80-400mm 1:4.5-5.6D ED telephoto (that I bought from CameralandNY). In the car, I used a Swarovski window mount. I shot a few frames while hiking or hunting and just rested the lens on the shooting sticks.
I used the same lens on a D200 a couple of years ago on a float trip on Kodiak Island and got some decent bear and eagle pictures. I think that they will be happier with something similar from Canon and the picture quality will be noticeably better. It will darned sure cost less than a Swarovski spotter.
