You can find Livy online in several places, the years of Livy you are looking for are here
http://oll.libertyfund.org/?option=c...html&Itemid=27
Most classic authors are online in lots of places and versions, it is always worth doing a Google search on "[Insert Author name] online".
Edited to add that if you do not want to google all the time, I have two links to the largest collections of classical authors I know of online on my blog
here. Beware that it is a roleplaying blog, so do not take everything at face value- the links are good though.
Bookmarks