Well, I know Sam's sells these Ham/cheese, Turkey/cheese spirals that I see alot. They aren't expensive, they look and taste great.
By traditional you mean like finger sandwiches, meatballs, lil smokies in bbq sauce and chicken? If you take a trip to Sam's they have alot of great ideas. As far as party dessert I like Bourbon Bars (cross between pecan pie and chocolate pie)
I hope this helps a little.