"I went through about 5 different names before I settled on one. I've legally changed my name twice (first time simply because I always hated my birth name, it was still girly though)"
I legally changed my name rather quickly because I had such distain for my given one as well. The name I have now is unisexual, and it suites well but I feel as I get futher along with changing, and becoming more comfortable myself I may have to change it again. Definately take your time, it will just save you time to be settled on the right name before you go around changing everything. Legally your allowed to use whatever name you want as long as it isn't for the purpose of fraud.