Back in the saddle

I decided to buy a new bike today. Just something to use on the bike paths here around DC. Last year I tried biking but was unfortunately injured and had to go to therapy to get the knee back in shape...not fun. Well, let's see if it will hold up this time. I went to see a knee specialist today and after looking at x-rays of my knee, he says it looks fine and biking shouldnt be any problem.