Id be telling less than the truth if I said I understood fully the whole "man in a womans body" thing, But heres my take on what Ive come to understand about myself....
I love men, and what I mean by that is this...I have chosen only men as partners in ongoing intimacy emotionally, because that feels very natural to me. However I LOVE women, and what I mean by that is that I find all things female in form and function to be very beautiful and attractive and sacred. I have pictures of nude females all around my home, sculptures and represtentations of my complete respect and desire of the female half of humanity. I am not opposed to sleeping with other women and do so from time to time, although calling myself "bi-sexual" feels way too oversimplified, so I dont identify as that.
I am married and have three children and I am very proud of the idea that I am capable of fullfilling my biological role as a female...it has brought me great joy and self appreciation to be what am, a woman. I think that men and women should be comfortable with their roles biologically...I get angry when feminists go on about how women should be equal to men, blah blah....the fact is that women arent equal to men, nor are men equal to women....we are just different, totally different in our intristic functions....which to me is A-OKAY. Why should I want to be like a man when I can be a woman? And I would expect the same attitude from a man. Both are equally important to the universal stasis we find ourselves a part of.
Now, when it comes to emotion and sexuality...we couldnt be the evolved species that we are and and not encounter a whole range of differences and experiences that trancend our basic biological existence. This is where I find that most people break off, and like was mentioned above....cant cope with their urges and attractions.
My point I guess is that on a personal level, because I have accepted and loved my basic existence as a female, that I am able to accept and cherish things that go against my basic nature (ie, homosexuality, etc) without ill-contrived bias or fear of losing who I am.