> ...your best bet is probably making the arrangement with a travel
> agent. Usually you should be able to rent from most companies
> if you are 21, but you'd be paying more if you are younger than 25.
I do not agree with the travel agent suggestion. IME, TA's have
no incentive to find you a good deal. The car rental companies are,
however, fairly competitive. I'd check the major travel websites
to get a list of lower-priced rental agencies where you'll arrive, like
www.orbitz.com, www.expedia.com, www.travelocity.com -- and
then check the websites of the rental companies themselves, like...
Alamo, Avis, Budget, Dollar, Enterprise, Hertz, National, Thrifty,
Using their website for your locale, I think you'll be able to book
an international reservation directly, as I did from the U.S. for a
Thrifty car rental in Italy.
Be aware that in the U.S., collision damage waiver (CDW) is an
add-on option that may or may not be needed depending upon
whether you'd be covered otherwise by your own insurance or
thru a credit-card benefit.