My wife and I will be travelling to Zurich in mid to late April 2007 to visit my sister who will be living there. We are thinking about taking a trip to Venice for a few day's while we are over there, and are trying to find the best/cheapest way to get there. We are open to any suggestions as we have been looking at air/rail/car. Any suggestions and time frames to get to Venice for each option?? Thanks in advance.