Natural boobies are best, in my opinion, no matter the size..
From what I've seen, getting breast implants is PAINFUL. You will be totally dependent on somebody else for several days after the surgery. All the muscles in your chest will be sore and there is always the chance of rejection.
I don't personally think it's worth it. You may lose sensitivity in your nipples, and the implants will need to be replaced every 7-10 years for the rest of your life. That is some money right there.
It's a big decision and you should really consider both the positives and negatives for a long time before you make any decisions. My vote goes towards "don't do it."