Good point about the federal tax incentive - it is $650 from now until 9/30/07.. Beyond that you lose it.

What state do you live in? If you look up the car on http://www.fueleconomy.gov, there's a link to incentives, including state tax incentives. In Colorado, the TCH gets a $2,265 credit off state income tax. In Connecticut, sales tax is waived, etc...