The Mark Manning Series:
Written by Michael Craft, it's a mixture of crime fiction and gay sex basically. The main character is Mark Manning, a successful investigative reporter. He meets his partner Neil in the first novel, Flight Dreams, and then there are another 5 or 6 novels. Some include Eye Contact, Body Language and Boy Toy. Quite interesting to read, as well as erotic.
I don't remember much of this- it's by some guy with surname Baker I think, but as the title suggests, it's pretty fast-paced.
If you want sex n drugs without the rock-n-roll. An Aussie book by Christos Tsiolkas, which was made into a film 'Head On'. Lots of Greeks, drugs, sex. I think the author went onto write The Jesus Man which is a bit more mature in terms of the stuff it deals with.
My Best Man
An upbeat novel, about a man who pretends to be straight and marry his friend so that she inherits some money. Fun more than anything- there's a nicely depicted shower scene. By Andy Schell.
This is weirdly similar to the coming out of James McGreevey, that American senator. It's not bad- written by Christopher Bram.