Im doing this exactly for my triple. My LHBS said a good way to do this is to soak the spices in a small amount of water and microwave to a boil. As it is often easier to use a hop bag when dryhopping, throw your spices in one before you microwave. Im not sure whether to pour any remaining water from your microwave boil into your secondary as a "spice tea" would help, but it sounds good.
Bottle: Arrogant Bastard Clone (fuuck yeah)
Primary: Summer ESB
Secondary: Henepin Tripel Clone
Next: Something light