New to this site, but not to GM Trucks. You can see from my signature I am well stocked on GM products. Just purchased a Sierra Denali which is still (but not for long) stock. My Hummer H2 has engine, body, and suspension mods, and the burb is the people transporter. I purchased the Denali while home on break from Afghanistan where I am now, but upon my return, will get to changing the truck. I see a lift, say 3", some tires and wheels, headers & exhaust, a programmer, and some bumper such as an ARB in the GMC's future. The Hummer will get a supercharger and the entire L92 head and intake setup as well as a com, and the Burb will just get whatever it needs to keep on going!