I just spent 3 days up in Pisgah this last weekend--great scenery and the weather was just fantastic! In 2.5 days you could hike a lot of that Shining Rock area, even taking it slow. In 3 days I did Davidson River Campground to Pisgah Inn to the Art Loeb (and some side trips) and then back down to make a circle...but it was definitely a push with all of that up/down. I don't have a map with me, but PM me if you have any specific questions. I would just go up Graveyard Fields Ridge to the Art Loeb and then depending on your pace you'll have your pick of routes to take you back. You gotta love the views on the Art Loeb north of the Parkway, but the lower elevations up in that same area are some of the nicest in Pisgah IMO. Nice to get out of the sun sometimes too. Near where you are parking is Yellowstone Falls (on the Graveyard Ridge Trail--you might see some people there, but it's still beautiful). There's a great but cold campsite (on the Bridges Camp Trail)not very far from where you want to park too. Since it's next to the creek it got down in the high 30's Sat nite, which felt like the arctic after 90+ Atlanta days. Hot in the sun during the day though. Some of the less travelled areas in the Wilderness areas are pretty overgrown this time of year. PM me if you have any questions. I have some photos here: http://www.flickr.com/photos/camprini/sets/72157624780700783/
Have a great trip!