Finally Getting Boobs, but Trying to Decide on CC's - Beverly Hills, CA

Hello all, I'm so happy I found this site! So to start off i'm 30 yrs old 5'4 125lbs currently 32 A. I have two kids 8 and 5 yrs old. Breastfed both..so i'm really deflated. I've been considering BA for about 4 years now. Finally i'm scheduled for my procedure. After seeing 3 different surgeons, I finally found one that i'm comfortable with and that has many great reviews, he's also a board certified plastic surgeon, not cosmetic surgeon, phew!!. So i'm going for mid-full C.I tried on sizer silicon 350 cc and 400cc. I really liked how the 350cc looked on me, but the 400cc seemed a bit on the big side. I'm hearing that a lot of women wished they would've went bigger. So I don't know which will fit me better. This whole experience is overwhelming. I am scared and have had nightmares that my breast are uneven and ect. Well I won't be changing my mind, I still want them,lol! I'll be posting pics soon, before and after. If any of you have any advice, I'd appreciate it. :-)