Climbing on Mount Lemmon, Arizona

In December 2005 we decided to drive the 3800 km trip from Haliburton, Ontario to Tuscon, Arizona. The trip was amazing as we hiked to the base of the Grand Canyon, rode our mountain bikes in the Catalina mountains and rock climbed on Mount Lemmon which oversees Tucson. However, we decided that the 50-hour drive was just too much to warrant a return trip...but we would be willing to consider other options in the future. Suggestions anyone?