Actually, homosexuality wasn't the real issue with Sodom and Gomorrah, according to John Boswell's 'Christianity, Social Tolerance, and Homosexuality'.
Ezekiel 16:49 - 50, "Behold, this was the iniquity of thy sister Sodom, pride, fulness of bread, and abundance of idleness was in her and in her daughters, neither did she strengthen the hand of the poor and needy. And they were haughty, and committed abomination before me: therefore I took them away as I saw good."
So - pride, possibly gluttony, sloth, and a lack of charity. 'Committed abomination' is rather unspecific, and could be something as off-the-wall as serving shrimp cocktails. There are other references, all the way through the Gospels, and they focus on pride and inhospitality (which was a very big deal in the Middle East at the time). It's not until you get into much later books (specifically 2 Peter and Jude) that sex comes into it at all.
>watches way too many weird documentaries, and actually read the whole thing - unlike the 'Thumpers.