I want to know what cc will take me from a 34b to a 34dd? (Photos)

Thank you for your question.  As you mentioned, there are many factors that come into play when determining implant size. Generally, the most important factors are the width of the implant, and the projection that you are looking for.  These factors are generally determined by taking measurements of you're present breast, and then determining which implant is right for you.  The actual amount of cc can vary depending on what shape you are looking for.  
Looking at the pictures of you're "dream boobs", most of those appear to be of reasonable width, and most likely a higher projection, which is what helps with giving the roundness on top.  Looking at your picture, you have a very nice figure, but you would need to have a breast exam without a bra on to see how much breast tissue of your own you have, and then determine exactly what implant would achieve the results you are looking for. 
As a ball park, most of the pictures you have displayed are at least 600 c plus.  I would recommend having a good examination by a board certified plastic surgeon to explain to all of the factors that, come into play to achieve the results that you are looking for.  Best of luck.

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.  The size,
profile, and shape of the implant is based on your desired breast
size/shape, your chest wall measurements, and soft tissue quality. 
This decision should be based on a detailed discussion with
equal input from both you and your surgeon.   Make sure you
specifically look at before and after pictures of real patients who have
had this surgery performed by your surgeon and evaluate their
results.   The most important aspect is to find a surgeon you are
comfortable with. I recommend that you seek consultation with a qualified
board-certified plastic surgeon who can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon