Having multiple tattoos myself, let me give you a little advice.
White ink doesnt really last. So nix any idea where the tattoo will really need a lot of white.
Find something you like and hang it on the wall in your bedroom for 6-12 months. If you are still dead set on getting that tattoo'd on your body after that amount of time then go for it. But don't jump too soon into any particular design until you have lived with that design awhile.
Shop around. Go to several different tattoo parlors - ask to see their enclave, sterile needles and portfolio. Make sure its a reputable place. You don't wanta half-assed ink job on your body for the rest of your life.
Get it someplace that is easily covered by clothing. Keep in mind that although you and I have no issues with tattoos, some people do. And it CAN affect your future career.