For UWSurfer, I did pretty much the exact thing a few years ago when I bought my new Acura. Faxed 6 local dealers basically an RFQ (Request for Quote), listing model I wanted, and some additional accessories (some decent ones: remote starte, LoJack). I wanted a dealer that could do all the work, plus all I really cared about was the bottom line - I figured they might discount the car if they knew they could make some profit on the accessories. I mentioned I was contacting other dealers, so I assume I'd get some accurate prices without a lot if in-person negotiation.
I took the effective lowest price to my preferred dealer (closest to my house), who matched the price. Strangely, all the accessories (parts + labor) he listed at full price, but then discounted the purchase price of the car to end up matching the overall total. I think I had an agreement on the price within 5 minutes of talking to him (of course he did the "I need to talk to my manager first" routine).
Big Matt, there are definite deals out, especially on new cars. The whole "price compression" issue (difference between new and used) was what started the thread. For what we paid, we could have gotten a new car, but in a sense "stripped". What we gave up in new car, and one with less/no miles, we picked up in what I consider to be a very loaded car (no way I'd find a new car with heater leather seats, 6 air bags, HID headlights, to name a few, for less than $15k). My wife doesn't drives very little, so she doesn't need the extra life expectancy that a newer car might provide.
Jeff