I am 50 which isn't quite as old as I used to think it was... I am not aware of any doctors in the area that are resurfacing. I believe it was just approved in the US April 07. My OS has done many THR's and has a very good reputation for them. Being that the resurfacing option is new in the US he and the research I have done indicates that there is and will be a learning curve for the US. I am also hearing that some folks are running on THRs. Do some OS support running after the THR?
Take this for what it is worth, but medicine as practiced in the US is pretty conservative vs. everywhere else. That has good and bad points for sure. They (FDA, AMA, other agencies) want to keep us safe and avoid problems with less than well documented procedures. But in that effort, they are somewhat slow to adapt to new techniques that seem to gain foothold in other countries much faster. For years, THR has been the standard because they have worked out most of the bugs with the devices and the procedure to install them. Open you up, cut the femur, drill the pelvis, drill the femur, put the hardware in and close you up. Chance of success, pretty good. Resurfacing from what I can tell takes more time, needs more skills to be learned and doesn't have the track record here that makes most US surgeons happy. (keeping in mind that this country is malpractice lawsuit crazy).
My biggest concern on resurfacing vs. THR is the potential for revision in 15-20 years. If I have a resurfacing, and I need to have it fixed down the road, it wont be as problematic as if I have a THR since there is alot more bone left to work with. I think resurfacing will gain a foothold here in the US but it may take quite a bit more time. I know I don't have that much time that I want to wait.
Going overseas to have the surgery done is an option, but it comes with risks for sure. It would not be my decision for a number of reasons. But, if you are looking at paying for the surgery yourself (no insurance), then maybe it is your best option.
Running afterwards may be something that you can do either way, but it is probably not without a certain amount of risk as well. A car that is raced everyday isn't going to last as long as one only driven to church on Sunday. Simple physics say you will wear out parts quicker. Maybe some other form of low impact exercise and recreation would be a good alternative. I am looking forward to getting back on a bicycle. Most folks getting hips fixed are not spring chickens so we need to keep sight of maintaining and preserving our health now so that we will have it when we are all collecting social security and Medicare. It's your call John, do what you feel is right.