Get on corvetteforum.com. Several of the site's dealer sponsors have on-going killer deals. I haven't checked lately but a base model 08 coupe 430hp 6 speed was going for $39.5 a couple months ago. Times are tight and the hi-end dealerships are hurting. If you're diligent you can even find $10K off a new Z06
The out of state dealer you buy from can even have it shipped to the local dealership of your choice. I bought my Z06 from Kerbeck in Atlantic City and at the time saved $15K off local pricing. With a coupe you can expect 30 mpg on a trip. I got 27 mpg on a 1500 mile stint in the Z06 (my daily driver)!
btw... don't drive the Z06 or you'll never be happy with anything less, stock: 11.7 @ 125+.. GM's official numbers too.
Dave