Try to book a hotel near Mestre train station, it only costs you 1 Euro and 10 minutes to reach Venice, train start every 5 or 10 minutes. Venice itself is stinky and expensive, not a good idea to live on the island. Check out Best Western website of their Mestre hotel, I just beck from there this Wednesday, 89 Euro all inclusive for a double room. Good deal since it's just oppsite the train station.
http://b2b.ratestogo.com/Hotel.asp?HotelID=12128&lc=CS&CitySpecialsHotelID=12128&inDate=2009-9-28&outDate=2009-9-29&lenStay=1
我订的是这家离火车站也蛮近的
这个不错的,我住过,很干净。当时是120欧