Pro Grade Package?

[newguy07]

As I mentioned in another post I am on the verge of having my dealer get me one of the remaining 08 ext cab 4x4 trucks. I am leaning for toward the GMC then the Chevy however there are a lot less GMCs to choose from nearby. One that has all the features and color I want also has the prograde edition package. This includes 20 inch wheels and "high performance suspension package". So whats the deal with this? How does it look with the 20 inchers? How do they handle snow, mud, light off road usage (firewood and hunting). What is the "high performance suspension package" THanks. Tomorrow is the day if we can find one and work it out.