cabrits--
here is another suggestion. I'm not sure what your insurance situation is, but I would suggest a Diners Club card to charge your rental. Not only do you get airline miles for the charge, but you get primary damage coverage on the rental car. If you have a car back home not being used you may be able to cancel/suspend part of your insurance saving you addl $. Even if not i would still suggest it since if you have any damage your insurer wont have to know and your rates on your own car will not rise.
And of course if you dont have any family or friends to refer you I will gladly--just e-mail me. btw Diners is offering 12,000 miles for signing up