The Reverend Dr. David Peterson, lecturer at Moore Theological College in Sydney and former principal of Oak Hill Theological College in London, is the current chairman of Liberty Christian Ministries. He has edited a very helpful theological resource on sexuality named Holiness and Sexuality: Homosexuality in a biblical context (2004) and has a website where he has published articles on sexuality, among other topics.
The following links are a collection of papers that he has written on the topic of sexuality, which will be undoubtedly useful for anyone thinking through the issues of homosexuality: