Me and my Girlfriend sailed on the 12-night voyage on the Med departing 14th August 2011 from Barcelona.
Firstly..... the ports of call. We have visited a number of the ports of call previously so on some days opted to take advantage of having the ship to ourselves.
Monaco - Did the hop-on-hop-off bus tour for 17EUR pp. This was a great way to see all of the sights in Monaco and leaves from the cruise terminal. Would recommend doing a full tour on the bus (approx. 1 hour) before deciding which sights to see in more detail second time around.