If you only have a few days definately go to Vermont, about a 6-7 hour drive.
It's our favourite getaway. We've been there at least a dozen times.
Things to see/do:
-Drive through scenic Adirondacks and stop in Lake Placid on the way
-Take a ferry across Lake Champlain and take in the mountain views
-take a day in Burlington, Vermont to explore their great downtown (stay at the Hawthorn Suites, in South Burlington, a great hotel with excellent hot breakfast and even a cat, "Butterscotch")
-take a tour of the Vermont Teddy Bear Company
-visit the Shelburne Museum (minutes south of Burlington) where they exhibit collections of collections, really interesting stuff
-head to Stowe for a couple days (stop on your way in Waterbury, home of Ben & Jerry's Ice Cream--take a tour)
-we stay at The Golden Eagle resort, a great little resort in the middle of the action
-drive up the mountain road through Smugglers Notch, a very unique roadway
-get a pizza from Pie in the Sky across from the Eagle, DELICIOUS!!
-Enjoy the clean mountain air...
Ahhhhhh...wish we were going soon, next summer for sure.
Be sure to go, you'll have a great time I'm sure.