I'd like it if they had an barber shop where you can change hair style/color and other characteristics for a gil fee and to prevent people from spam changing their looks have a timer on it like guild leves or something like that. I'm against real money fee to change hair color/style/charateristics but I think a real money fee would be good for changing race.

Also, sliders seems like a bad idea to me... I've seen a few games where they let you use sliders when making your character and it usually ends up making the gear look horrible.