Thanks to http://www.heavens-above.com/, I was able to figure out when to wake up this morning to see BOTH the International Space Station and the STS-120 Space Shuttle Discovery!
I wish I had a digital camera or video camera with me, because it was really very cool! They passed right over Colorado moving from Southwest to Northeast. The whole thing was over in about 5 minutes, so I really didn't want to run in and wake up the whole house trying to find my equipment.
I should prepare a little better next time. Still, it was a really cool site to see!