Okay, well after weeks of reading the forums, I am finally posting something. I just picked up my new ms3, and here's what I got for what:
2008.5 mazdaspped3 GT
Black Mica
All-Weather floormats
Wheel Locks
Sirius radio
1 free oil change
All said and done, I got it for 23,590...OTD. The amount covered the price of the car (with midyear re-design), sales tax (3%), and all of the other misc. fees. From what I can remember, the fees included a dealer doc fee, inspection, title and registration (tags), and some other kind of usage fee. I think the only reason I managed to get is as cheap as I did was because they just got a shipment of MS3s a couple of weeks ago. From what I can tell, this means that they were able to get more of the 2% dealer holdback from Mazda and, in turn, take my offer of less than invoice. If you're looking to buy an ms3, I would highly suggest you google "dealer holdback" and learn how the dealerships work.
The technique that seemed to work best for me was to handle the whole deal via the internet by requesting "the best price your dealership can offer me". I knew what each dealer had, including options, thanks to Mazda's inventory area on their website. I went back and forth with them for a week. Once I had the terms I wanted, I called the "winning" dealer and told him I wanted to test drive the car, and as long as there was nothing wrong with it, I would buy it on the spot. I also made sure to let him know that I already had my financing in place, and had a check in hand. This let him know that I could buy the car, if he gave me what I wanted. We were pretty straight forward with one another. I told him that the only reason I was going through him was because he had the best price. He told me that if I had walked in, rather than contacting them through the internet, I would likely have paid more for the car.
The car already has almost 200 miles on it, even though it had 32 when I picked it up. I just can't stop driving it. I never thought I'd say this, but I can't wait to go to work tomorrow. (cabpatch)