I'll second the
www.carbuyingtips.com. It's an awesome website with everything you'll need to know, including how to find out how much the car really costs the dealer and how much you should be paying. It has spreadsheets and other tools to help. I used the info and tools there to buy two new cars in the last couple years and I was able to stick it to 'em about as well as you could expect to be able to. The key is knowing what the car costs them and showing them that you know what it costs and that they can't come over the top of you with some BS like they can with the average schmoe.
They still may be able to bend you over on this particular car, being that it's just coming out and Civics are popular enough that they're bound to sell any that they get on the lot, so the pressure's not really on them to sell. You can come back with the fact that the new body style is womanly and that no other man will buy it. See if you can get anywhere with that.