Standard T-belt services are the timing belt, balance shaft belt, drive belts (PS, AC, Alt) and water pump. Seals and tensioners may be thrown in if a tech notices they're leaking, but like I said, they're usually not in the "base" T-belt service. Partswise, you're talking ~$150-200, and like the others have said, it's mostly labor. With the 4bangers like yours, you're going to end up taking the valve cover and timing belt covers off, just to give you a hint of what sort of work needs to be done.