Presley1 - A lot of your choices will be dependent upon the weather. However, it has been my experience that the attire in the skyboxes tends to be dressier than that in the stands. If I was in your situation here are a couple of outfits I might wear:
1. Dark wash denim pencil skirt, blouse, boyfriend blazer/cardi (tights and boots if the weather calls for it)
2. Dress with slouchy boots. Angie did a post on this: http://youlookfab.com/2009/09/.....uch-boots/
Those are my ideas. I am sure the other ladies on the forum will be a of wealth of knowledge as well.