Anyone have a good buttermilk biscuit recipe?

[CrAz3D]

from what I've found online ...

2 cups flour
1 tablespoon baking powder
3/4 teaspoon salt
1/2 tablespoon baking soda
4 tablespoons of crisco/shortening/butter
1 cup buttermilk


I plan to add chunks of cheese & ham to this, too. Sound decent enough? I figure I'll try it with the butter instead of crisco.