Great advice from all so far on this thread. My first boat was a 31, and my second a 41 (which is really more like a 45 in weight and overhangs). My advice? Go do it, you'll be fine.
Docking is different but you'll be fine. You've already got an idea of how boats steer. You know they steer like you're skiing not like you're driving a car, you already know you can't stop on a dime etc. The boats that 99% of places charter are fin keeled as well so they'll have less prop walk issues and will turn on a dime. Very handy.
The biggest difference in docking that I learned is that you can't do anything by hand. You can't stop the boat by hand. You can put a line around a cleat but you can't stop it by hand. You can't fend off by hand, but you can use a fender to bounce off.
The mechanics are the same, the loadings are a little harder. Treat the winches and sheets with a little more respect in a blow and try not to accidentally jybe. In the end though, it's not as big of a step as it seems.
Reading chapmans is a good idea, and not just for chartering. It truly is the bible of safe, sensible boating. Hiring a captain for a few hours is also a good idea if it lowers the anxiety level but I don't think you need it.
Anchoring is not as big of a deal as it sounds. Believe me it is an art, but the fundamentals are simple. Moorings are everywhere I hear in your area but if you do anchor remember these two things. Put out more rode than you think you need. There is only "enough rode" and "not enough rode" there is no such thing as "too much rode". It will mask all manner of sins. The second thing is to, slowly at first, reverse on your anchor under motor. Really do it, up to 1,500rpm or so. You'll be surprised how good you feel when the wind pipes up and you think back and say, "well it isn't as much strain as we put on it when we set it, so we must be okay."
Oh, and I almost forgot. Congratulations. A wife that wants to go sailing for a honeymoon must be alright.
Medsailor