I've always wanted to try WS, but never had the nerve to ask anyone to for fear of being thought a freak.
Yeah there was a comedienne on TV once time who said her boyfriend broke up with her because he said she had low self-esteem. So she asked him
"What are you saying, now you don't want to piss on me?" LOL. I agree that's the stereotype people a lot of people believe, but one thing I've learned about human sexuality is what turns you on is what turns you on -- you can't be governed by whether someone else approves and you can't necessarily understand everyone else's turnons. In other words 1) There's no accounting for taste, and 2) Live and let live.
Rather than find a guy you're attracted to and worry about if he's into it, why not find guys who are into it and then look for one you're attracted to for your first experience? That would be a good way to try it out to see if the reality is as hot as the fantasy.
Boston and Palm Springs seem to come up over and over if you Google it. But also NYC, L.A., Atlanta, Chicago, and San Franscisco. After that it looks like it's harder to find established venues in the smaller cities but there seems to be Yahoo groups for meeting people in a lot of cities. Here is a list of links to get you started.
Palm Springs GWS and
USAPiss - Gay Piss Links