I want to take advantage of the GMC Truck month and get the 0% APR for 60 months. I was looking at a 07 yukon denali fully loaded (nav, leather, the works). What is a good price? MSRP on the one I test drove was $56,000. I was thinking about trying to see if someone would give me one for $52,000 out the door (including taxes, etc). What do you guys think?