If you are registered to vote, please visit the following website to receive an absentee ballot so you may vote while in Perugia: http://travel.state.gov/law/info/info_2964.html (update 10/12/2011: this link is now inactive). The Department of State will lead you through the process so that you may cast your vote this fall for President.
All absentee ballots should be mailed to your new address in Perugia:
The Umbra Institute
Attn: (your name)
Via Bartolo 16
06100 Perugia ITALIA