My Hybridfest plans are starting to come together. My plan is to fly into Chicago and rent a Prius to drive from there. Unfortunately, none of the rental outlets at O'Hare seem to have Prius in their inventory, so it looks like it will be from a dealer. I got a quote from Oakbrook Toyota at Westmont for $110 for Friday-Monday, and another $39 for Thursday. For you Chicagoans, any suggestions on other options for the rental?