There are a whole range of university and college courses now in lesbian and gay studies and it might be useful to have a look at some of the resources that are available on the web now relating to these courses as they're a good place to start to get to think through the issues in much greater detail.

The Knitting Circle, based at Southbank University, is a good place to start with links to a range of lgb studies and queer studies courses and materials:

http://myweb.lsbu.ac.uk/stafflag/lagstudies.html#keytexts