Kate,
I have had the same reaction where I work. They all knew I was transexual, as I told my boss during my interview. I have not had any trouble and people now really don't even pay attention to that aspect in my life. It has been over 3 years now and I really think they have forgotten that I'm transexual, in fact I have forgotten. We have another transexual who had her surgery 8 years ago. She hired on last year. So that makes two of us and both of us know there is another girl, but she won't admit it, but thats OK. We have about 40 drivers, staff, and mechanics working in this place. I find it very rewarding and I don't think about it at all anymore, except when I come to Susans and the other boards I'm on.
Sheila