Chelsea,
My advice would be to reconsider your weights workouts. I think you can come up with something better. The one in your post is very long and has too much overlap, especially for the lower body. If you are going to add cardio and sports training on top of this then you might be overdoing it. See this link for ideas on weights workouts:
http://www.bodybuilding.com/fun/workout.htm
Secondly, it is better to use a wide range of reps rather than just high reps.
Regarding sets, you can use these are a means of progressing just like adding weight to exercises. Start off with a low number of sets and build it up over the course of 3-4 weeks, then drop the volume down to the beginning level and start again. Cycling it in this way allows your body downtime to recover and rebuild a stronger you.