Dear Bobbi,
I also go low impact when I feel anything in my knees hurting, and on Saturday, I did the kickbox of the CXT DVD without using my weighted gloves, and I did LowMax after. It burned a very nice 600 calories. Step has half the impact of running, and, even, Rhythmic Step can be rather low impact if you leave out the jumping. I usually do my step workouts on an 8 inch step, and I still get a decent workout even if I don't jump. Bootcamp plus RS is some workout, and I commend you.
I get more than seven hours of sleep a night, but I have always needed 8 or 9. I guess I am a little bit wild, Bobbi, and when my dear boyfriend was away on business for a month, I dated a 39 year old who is in the Air Force. He is a nice 6'2', 200 pound hunk, and he has a great personality. He contacted me when he knew he was going to be stationed in New Jersey for five weeks, and I had a nice four dates with him. He is back in DC now, and I don't feel a shred of guilt, as Dirk and I are not engaged, and we are not married. Dirk came back from his business trip, and things are great between us as always.