[Zope] Newbie Question

Hi There, I'm an absolute newbie to Zope and was hoping for some help. I'm jumping head first into a project for one of our creative clients. I've recommended Zope over other application servers. One of the requirements for the site is that we build an easy mac-feeling content management system for the clients to update the site as well as upload Quicktime files and change stuff around. Where should I start, and what should I use? Another requirement would be the creation of an online calendar that can be accessed by a particular workgroup. Again, where would I start, and what would I use? Lastly, what does one charge for building a CMS solution as such? I appologise if the questions are trivial. Thanks for the time. iggy