I used the chrysler site when i was researching what to put down and monthly payments. They have a payment calc there thats moderately accurate. If you want a roadster, there really arent any deals on it right now, but as the weather gets colder, i heard rumors they might put some money up to move the cars. Anyone who has a car on order will be eligible for the best offer that comes up during their order period. They're trying to push the 3yr lease with a 3.4% interest rate. If you go any other way as far as time, or buy it, interest jumps to 7% or 8% and your monthly payment almost doubles. In my area the 3% lease with the buyout worked out to be within a few hundred of buying it outright. But like i said, I worked out the numbers on the chrysler financial site, and when i went to see what the dealer would give, it was within a few dollars. The site will let you build the car you want and then show you financing options. The car i ordered topped out around 41k(roadster, sapphire, auto, asp tires), i put 6000 down, and im paying 400 a month for the lease, and then the buyout is something in the low to mid 20 range. so my total to own the car after a 3yr lease and the buyout is around 45k. Just be sure to check up on your dealer; some of the ones in my area were tacking up to 3000 on the sticker calling it a 'limited edition series.' Thats bullshit, and if you see that on the sticker, walk away from the dealer and go somewhere else. In the philly area i would recommend KNOPF CHRYSLER & DODGE in Ambler, Pa. My family has worked with the owners there for years and purchased 7 or 8 cars from them over the years. And they never try to pull anything over on you. Hope this helps...