If you haven't already, you might be interested in checking out this website, it has tremendous amount of information not only about the falseness and destructiveness of the so-called "gay" lifestyle, but a lot of ammunition for counteracting it:
www.abidingtruth.com I just gave them a small donation and got a number of really good booklets, entitled:
Reprobate Theology, the Homosexual Seduction of the American Church
A Christian Defense of the Natural Family - A teaching guide for Christian educators, youth groups and home-schoolers [after reading it, it would be good for people who aren't Christian too as long as they aren't uptight about it)
Defeating "Gay" Arguments with Simple Logic (I've started this one - it's really powerful)
I urge anyone here to check out this website if the idea of sodomy shoved down your throat doesn't appeal to you. The tone is definitely not strident, is rational, logical, and even - loving.