i personally don't like fake breasts (fake breasts = fake chick).  true you'll get a lot more attention from guys, but for all the wrong reasons.  if you have small ones now, at least you know that the guys that are interested in you aren't just in it for the titties.  plus with surgery you run all those risks, just to have a big glowing sign on your chest that says "insecure."  whenever i meet a girl with fake tits, she automatically gets put in the "one night stand" category, no matter how good her sense of humor is or how cool of a person she is, because she's fake. just the same as if i met a chick with a "fake" personality, i wouldn't want any meaningful contact with her, just sex.
but if all you want is more attention from shallow guys that are just looking for a fuck to brag to their hairy-palmed friends about the next day, then by all means go D cup.
-Strode
Only in my sweetest dreams do my streams lack troubled waters, shallow pools full of shallow fools...