My 2003 GT, needs front tires ( backs look OK) I was also told by the dealer it would be a good in case I have work done by them due to the fact that, the factory rep uses that as a way to tell if the car was driven hard.

so if I need to by tires I thought I would go to the source.. You Guys!!!!
1, should I buy 4 new tires
2, Would wider be better ( I do need to think NY snow)
3, $$$$
4, Like I said the backs are fine, could i put those in front and
place wider in back untill time for new.. then repeat?
THANKS Scott