I had a cruise with Star Princess last month and had a wonderful time.
1. Kusadasi (Ephesus) - We used Byzance Limo. The website is http://more.at/Byzance
The site lists all of the tours and prices. I found them very courteous, professional, and very quick to respond to my emails. There are many wonderful reviews about this company. They were first class and the guides were helpful, informative and very flexible. It was something we enjoyed so much (a feast for the eyes, ears and senses). The following day we took a Bosphorus cruise tour. Could not have been more pleased from the services. They took us to many spots and treated us like treasured friends. We highly recommend them to everyone (really reasonable). Around $200 for up to 6 people for a full day tour. Ephesus was so interesting! See as much as you can.
2. Naples - We used Marcello Maresca from See Sorrento. Our trip will included a visit to Pompeii, then the drive along the Amalfi coast with a stop at his family's restaurant for lunch. Marcello owns the business and has another driver to assist him when he his personally booked up. His website is www.seesorrento.com
Marcello's email address is firstname.lastname@example.org
3. Athens - we used Spiros from www.athenstaxi.net
He is very reasonable...around 200 euro for up to 4 people for a full day tour.
4. Villefranche - We are booked through Dream Tours for a tour to Monte Carlo, Monaco, Nice, Eze, and St. Paul de Vence. Alain is the person who handles the reservations. He was VERY helpful and put up with dozens of emails from me. The website is www.dream-tours.com
You can email him at email@example.com
I have also heard that Sylvie De Cristo (sp?) is a wonderful guide here, as well.
Our favorite port was Santorini! We took the half day tour and still had time to shop and make it back to the ship for a late lunch. Everyone takes either the gondola or the donkies back down to the tenders! Fun!
Make sure to be out on deck when you sail into Malta! Nothing like it! We took a taxi into town and went to St. John's Co-cathedral. An amazing, pleasant surprise and right in the middle of town right above where the ship docks. Still had time to shop a bit and get back to the ship in time for lunch.(This always helps in the finance department!)
Mykonos, we didn't take a tour because the ship has a shuttle bus to town. We enjoyed the photo opportunities here as well as shopping for music. We heard some complaints from people who paid for tours here... but then there are always some unhappy campers everywhere!