I've used cinnamon, ginger, coriander, grains of paradise (the last two probably not spices), and cardamon already. All have gone in no earlier than the last 15 minutes; some at about 2-3 minutes left in the boil. I have never seen any spices that get mashed because, from what I know, there are no sugars in spices that need conversion.
As for fruits, I would suggest trying whole, fresh fruit instead of dried. You'll get a better flavor from fresh.