I don't have any experience with that tire size on the stock rims, you need to check the tire manufacturers specs to see if they'll fit on the stock rims.
Whether or not you sensor lower the car afterwards is an aesthetic question, you'll need to make up your own mind about that.
No, you don't want to run the DR's on the front.
Your speedometer will be off about 3.5%, and you won't be able to do anything about it.
Personally, I think DR's for the street is a mistake, they're horrible in the rain. Just get a good set of summer tires. I run Firestone Wide Ovals, and they're available in the stock size (and on sale @ TireRack). You're not going to have that much horsepower. :wink: