First, let me admit that what I know about HTTPS is pretty rudimentary. I don\'t know much about session security, encryption, or how either of those things is supposed to b
You can serve the same content via HTTPS as you do via HTTP (just point it to the same document root).
Cons that may be major or minor, depending:
Those are pretty basic, but just a few things to note. Also, personally, I feel much better seeing that the entire site is HTTPS if it's anything related to financial stuff, obviously, but as far as general browsing, no, I don't care.