I hate the fact that b-bodies have a single dual filament bulb on either side of the car for the headlights. I just dont think that they produce enough lite. So i have decided that as soon as i have the money i am going to order some HIDs. I found a great website to order them from. A buddy of mine ordered 3 kits from them for his 2006 Denali and had them for 2 years with no problem and sold them with the truck.
http://www.tophidkits.com/