Links -

Yellowstone top ten and maps

http://www.yellowstone.net/topten.htm

http://www.yellowstonenationalpark.com/maps.htm

http://www.yellowstone-natl-park.com/map.htm

Park road conditions

http://www.nps.gov/yell/planyourvisit/roadclosures.htm

Some sample itineraries/maps

http://www.alandsuejohnson.com/yellowstone_home.htm

Hiking in the park

http://www.nps.gov/yell/planyourvisit/hiking.htm

Lodge in the park

http://www.yellowstonenationalparklodges.com/

Yellowstone 4 days
Day 1 - Grant Village (South)
Day 2 - Lake Lodge  ( Southeast)
Day 3 - Mamoth Hot Spring (Northeast)
Day 4 - Cayon Lodge (East)

Grand Teton

http://www.gtlc.com/

Stay in Jakson Lake Lodge (center of Teton)

Salt Lake City