I'm looking at osDate, which I think may do what I want. I've noticed that many of the dating scripts out only search by age and gender, not by proximity. I want a proximity search for my site, that is to say, everyone within 10 miles, with a list of options (5 miles, 10 miles, 15 miles, 20 miles, 30 miles, 50 miles, 100 miles, etc...)