I worked with our Dreams Los Cabos WC, Mariana, to purchase and manage our flowers (bouquets and boutonnieres). She got us an excellent price through their floral vendor. During my search, I found that the prices she was able to quote us were much cheaper than the quotes I was given my contacting the vendors directly myself. The flowers were gorgeous too! I know that the Dreams website has some sample photos of the flowers they provide--but it really doesn't do them justice.
Just to give you an example of my cost savings: I paid $100 for a large bridal bouquet with white roses, white hydrangeas, and white orchids. The bouquet was wrapped at the stem with a thick white satin ribbon and pearl tipped pins. I also bought some silver rhinestone pins to stick in the actual bouquet (bought them for less that $5 at Michael's).