What Exercise can i do

I had my surgery on the 30th of April 2009,

I suffer form several forms of Arthritis (Rheumatoid, asteoarthritis, and a few others) as well as fybromyalgia and i have trouble walking since my knees and hips are affected the most. I have lost 26 pounds so far :thumbup: and can stand a little longer than before the surgery, so i know its going to get better. However so far the only thing i am doing is exercising my arms, as i am in to much pain to try to do anything with my legs. :tt1: Any suggestions on things i can do to get a regular exercise program to fit with my problems. Btyboop58