Posted August 3rd, 2009, 08:15 PM
As we were going to spend extra days in Venice, I started with a guidebook and a map from a bookstore (consider MapEasy's Guidemap To Venice). The map lists several hotels so you can become better oriented. The P. Roma area is Santa Croce and there are a limited number of hotels (maybe two) that you can drive up to, a couple that require crossing one bridge and several that require crossing two bridges. There is also a reasonable price range from relatively expensive to way more expensive. (If you want to have a laugh, go to a site like the Sheraton and price a room with a view of the Grand Canal at $800+/night.)
Starting with Santa Croce, you can go on Trip Adviser and look at some options.
What time do you arrive in P. Roma (better in daylight)? How heavy are your suitcases (better one rolling piece/adult)? How active/healthy are you? Most hotels are within converted 500 year-old palacios, so you are dealing with 7-20 rooms, for the most part. In this area, apparently one building was most recently built as a hotel (The Sofitel). We selected a mid-range hotel were to stay 3 nights and visited staff the day before when we were still on the ship, talking up our upcoming stay (hoping for a large room and a large bath). Although we had paid for a backroom, we were placed on the third floor with a canal/Grand Canal/new bridge view and a great bathroom divided into two rooms. We stayed at the Hotel Gardena on Fond. Tolentini and paid 170 euro/night including a reasonable buffet breakfast (just wait for the ship to indulge!).
Do remember that all descriptions of distances used in hotel etc. ads assume that you are an olympic athlete (just 10 minutes, etc.). The Piazza Roma area is convenient for the beginning of vaparatto routes to Murano and down the Grand Canal to St. Marks square. If your hotel room has a refrigerator, there is a Coop grocery store next to the vaparatto stop where you can get a 6-pack of soda for the price of one at a restaurant.
Hope my ramblings are helpful in your Venice planning,