Do you have any secrets to making your own homemade salsa?

I recently started making my own tortilla chips and I was wondering if you cared to share your recipe for homemade salsa or any special ingredients to give it something special. Heat is not an issue as I like it very spicy. I’ll probably end up adding an extra habanero or jalapeno peppers anyways.

Also, What’s the difference in a blender and a food processor? Most recipes call for the processor but I only have a blender. Does it really matter?