While looking for some ideas for bring hors d'oeuvre to my own holiday party, I ran across some websites to share:
Kraft Foods Ideas - search on left for 'Appetizers/Snacks'
Other easy ideas that people love:
Deviled Eggs - Always the first thing to go at any event. Whether they are traditional or have a non-traditional spin, like add fresh herbs or curry powder.
Toasted Mixed Nuts, I like to bake a variety of nuts in a 350°F oven for 10 to 15 minutes until just starting to brown. While they are roasting, I melt 1 stick of butter with about a 1/4 cup of brown sugar, a splash of hot sauce (or cayenne) and some chopped fresh herbs, like rosemary or thyme.
Boursin cheese goes great with some many things. I like the garlic and herb best. You can thin it with a bit of milk or cream and then pipe it onto crudité like cucumber rounds, cherry tomato cups and carrot and celery sticks.