Well, it is 3½ months since my Birmingham hip resurfacing, and I couldn't be happier! My doctor did not want me to ride my bike for 3 months, so it has only been 2 weeks since I started riding outdoors - I was able to do indoor cycling during my rehab. I have found that my average speed is more that 1 mph faster than last year, for the same level of fitness. I assume that is because I am able to actualy put some strength into pedaling on what was formerly the bad side. There is no pain while riding - no pain at all, in fact. No problems mounting, bending over the bars, etc.
Thanks to all of you for your encouragement!