While you are waiting for the doctor to fix you up towards mobility in that shoulder, you might want to check out the resources at www.sparkpeople.com/resource/lifestyle_cen
For example, you could probably do all the leg strength training exercises.
I think it will probably be a while before the doctor releases you to do push ups or chin-ups.
What about walking?
And my last offer is what I do: water exercise, water aerobics, aqua zumba, treading water. I can hang in the water without moving anything, So I can pretty much exercise every limb except the one giving me problems in the deep end of the pool. Besides, I love the water. If general vertical floating doesn't come easy, then get one of those waist floaters. It will keep you afloat without use of that shoulder, and allow you to give your legs quite a workout. You can also do twists that tone your core.
Good luck!! Hope you heal quickly!!