It seems that the traditional places to pick up men or women have become tired. That ultimate classic, the bar, has become stale and it tends to carry a Cheers quality to it -- you know, "Everyone knows your . . . name." The second is a shot in the dark and scary: the personals. How many horror stories have you heard? Rest stops require driving, and, let's face it, not much to choose from. So, where does a single stand? At Bally Total Fitness, of course. This has become a mecca for beefcake of all varieties. Mmm, we're talking USDA prime cut meat here. There is plenty to choose from, and the simple fact is that if they are at the gym they must care about getting physical. There's equipment, but who are we fooling? More important, there's plenty of scenery to motivate you through that workout. So, boys and girls, pump some iron and if the stars align, find that elusive catch.