1 yr. Post-Op Softball Player

I am a competitve coach for an 18U fastpitch softball team. We are getting ready to head inside for the winter. We will be doing LOTS of conditioning to get into shape. I have a girl on my team that had ACL reconstruction about a year ago. It still bothers her causing her great discomfort after we do alot of our running drills outdoors. I would like to come up with a specialized conditioning program for her to do that not only strengthens her knee but gets her some good cardio as well. I'm a P90X girl so I was planning on having her do the Plyomentrics DVD as well as lots of box jumps, lunges, jump rope, etc. I also have an agility ladder that I will have her do drills on as well. We will be conditioning 1 hour at a time, 2 days a week so I need lots more ideas in order to keep it interesting for her. Does anyone have ANY other drills that she can do? Also, any feedback on what I plan to have her do would be appreciated. I'm familiar with rehab (2 shoulder surgeries of my own), but I have NO clue about rehabbing a knee injury. Thanks.