Good luck, Rita!
I'm also accruing documents to prepare for my name change in NYC. I have an appropriately medicalizing letter from my psychologist, and am awaiting the arrival of my birth certificate. Miserably, I have to acquire new IDs from the SSA and DMV using my former name before submitting my petition, and then, of course, do it all over again. I'll be watching this thread, and will share anything I learn over the coming weeks.