Good snowbird spots around Tucson AZ ??

Planning to spend some time around Tucson AZ in January - February '10. Any recommendations for RV parks with amenities in that area, possibly including Green Valley, Oro Valley, or ??.

Thanks,
Jim

We've been in GV for about 12 yr. Highly recommended. Usually full Jan and FEB. get reservations in quick. Everybody who comes to GV always comes again. Several MT folks here.