As a single man, you're one of very many, and part of a group who is usually frowned upon, as some single men just don't know how to behave.
Meeting swingers should not be the major issue, clubs will let you in if you dress and behave accoridngly, though couple nights will be out-of-reach for you. Then, don't be pushy, don't be salty, behave like a human being and remember that swingers are regular people. It might not be "all the fun", but you'll get an idea of the scene. Have fun!
We had our first date with another couple. We already knew that we were not going to end up in the sack, but a four-way flirt was exciting. It took a little bit of liquid courage, but all went well. The other couple were very engaging, the female half obviously was interested in my girlfriend, and we ended up staying five hours in a bar. Nice! We plan on visiting a swinger club with them next time.
Besides this, lots of sex at the moment, from cuddly loving one to bondage sessions. :)