5'6", 111 lbs and 34A bras.
Size 1-2 or extra-small in US sizes, I don't know for elsewhere. Swimsuit/dress I'd probably be an 8 too. Shoes size 9 (though I can wear 8½ too - US shoe size, too).
My hair last I checked was 31 inch long, about waist length.
Nothing in men's, or boy's fit. It was all too baggy and too big. I was wearing medium, large and extra-large t-shirts pre-transition.
http://i12.photobucket.com/albums/a213/Sara_Zeal/Photo005.jpgThis is a medium men's t-shirt shortly before transition. It went to mid-thigh. My waist is at my elbow's length. And if you notice, I had some nail polish on, I didn't show it while outside, but didn't mind if inside (meaning inside but elsewhere, not at home).
The t-shirts easily hid my small waist. The pants...well, without a very tight belt, and I seldom wore belts unless I really had to, would fall off. I'd have to bring them back up (not from the ground, but they would ride down gradually) every 5 minutes, while at work. Never had such an issue with women's pants, though they also fit.
I wore all black because I didn't really care what I wore. It didn't matter since it wasn't me. Black t-shirts helped make me more invisible. Though I might have been taken for a goth by some.