well I have a 98 (I know you were saying 2000+), but the 4 wheel worked great in the snow, but I haven't had reliable 4-wheel drive for the past two winters. Something to take a look at is pop the center cap off on the wheel (front), and check to see if there is a screen blocking debris from getting into the hub. If there is, becareful to not lose your centercap because water could get in there and foul up your 4-wheel drive (that's what best guess was with mine). Overall, pretty decent truck, good 4-wheel drive (when its working properly, replace the centercap ASAP if you lose it), and decent handling in 2-wheel drive in foul weather (if you put weight in the bed of the truck and know how to drive in foul conditions).
life is too short to have any regrets