I read Motor Trend's Truck Trend today and GM will start to carry the new 427SS made by Fastlane. Only select dealerships will carry them.
http://www.fastlaneturbo.com/427ss.aspx

In 2011, the HD trucks will have new frames, upgraded suspension, upgraded power, with improved steering and brakes. New numbers are about 390 hp and 765 tq around 3500 rpm. The Denali package will also be available for HD trucks to compete with the King Ranch trucks. Price ranges from 30000-55000. I cant wait