I had to giggle at the idea that GMC actually made that Denali. I am sure its assembled right next to a Yukon. LOL
If you are willing to order online and put the bike together yourself or pay a shop to do it you can check out Bikeisland.com who is a sister company to bikesdirect that was mentioned in the previous post and they have scratch and dent specials that can be nice deals.
http://bikeisland.com/index.cgi
Used is usually the best bang for your buck. It seems like you are looking at hybrids and honestly thats some of the best values on the market because so many people buy them and never ride them and sell them for cheap. It takes time to find the deal and you have to get to it before someone else does. Some shops might have some closeout deals on 2010 bikes or whatever else they want to get rid of and some shops have used bikes including rentals.