Thanks for all of the great suggestions. I have been to this area several times but this is the first one solely for photography (and alone). Places I have already done are Santa Fe and Taos Pueblo (the Turtle Dance celebration, which did not allow photography, and then later when photography was allowed with a permit). Also, Rancho de Taos, of course. Went to Ghost Ranch quite a few years ago, and took photos (film) but the camera was stolen before I got to develop them. Major bummer. GR is already on my list.
I have also been to Acoma Sky City and Canyon de Chelly but prior to doing any serious photography. Took two trips to the canyon floor, once by horseback and the other by 4WD. Simply spectacular, with a very interesting guides. On horseback, the guide was very quiet. I managed to engage him a bit and he became comfortable with conversation. We talked about many issues - BIA, alcoholism and poverty on the reservation, his religion. I will never forget that experience.
Will check out Antelope and Walnut Canyons and Kasha-Katuwe. I have already purchased all three of Laurent Martres' books, exerda. Just need to find the time to do some serious reading and planning, although I like to be as spontaneous as possible.
Thanks again. Will keep you posted.