Tickitaly are able to recommend the following sites for your visit to Italy:
A Hotel In Italy - Book Italy hotels online, with thousands of Italian hotel listings
italy-weather-and-maps.com - Six day weather forecasts for all of Italy, plus local and regional Italian maps.
Quick booking links:
Accademia (David) tickets : Uffizi tickets : Uffizi guided tours : Colosseum tickets : Florence guided tours : Vatican tickets : Vatican tours : Borghese tickets : Venice Museums : The Last Supper : Last Supper - tours : Verona Opera tickets : Pisa Tower tickets : Pompeii and Vesuvius area tickets