You might research the fares on to see the cost of regular tickets for your trips, and decide whether it's worthwhile to buy a pass. The Italian language site seems to work better than the English, although the English site does say that the Trenitalia Pass can be bought in the big stations in Italy.
>From my reading of the Rail Europe site, you would need to pay the supplement for Eurostar with the pass, so on the Trenitalia site you should price a trip that doesn't say ES to make a valid comparison; if going on Eurostar you would need to pay the supplement in either case.

>From what I've heard, it's rarely worthwhile to buy a pass in Italy. One example: Rome-Venice in second class on InterCity shows 35.89 euros one way.

Andrew Missouri New home page: http://staff.mwsc.edu/~mcgarrel/travel/home.htm