A good, general how to on the subject of roasting vegetables.
http://m.huffpost.com/us/entry/us_56c48a91e4b08ffac1271bee
Jamie Oliver rocks some nice looking roasted potatoes here.
http://www.jamieoliver.com/recipes/vegetables-recipes/perfect-roast-potatoes/
He introduces the idea of using vinegar with our roasted veggies. Apparently the acid cooks away and leaves behind something extra.