We're about to adopt a cat from the RSPCA - a lovely one year old ginger boy. We were only planning to get one cat, but he's been a bit ill so we've had a few visits to the rescue centre whilst waiting to adopt him. Today we visited and saw a slightly older fluffy three legged cat who was very friendly... The two cats seemed to get on. He came up to us to be petted and was really lovely with our kids. He's been at the rescue centre since March. 
I always believed cats were solitary creatures, but the rescue centre suggested they could work as a pair? My husband isn't sure about taking on the second cat as he is long haired and we're not sure about all the grooming / fur balls involved (we haven't had a cat before). Also, is it fair to take on a cat with three legs as a companion to one which is more energetic/agile? We want to be sure we're making the right decision either way (it was hard to leave him behind!). Any advice would be appreciated!