I looked up the specs, and they are 2W, which is probably still to much current. I am waiting for the delivery of the TPIC6595's and will let you know how that works.
One question, this would probably be a decent solution for driving single LED's if I replace the incandescent bulbs for the indicator lights? I am still trying to figure out when to use transistor/mosfet/optocoupler/TPIC6595's/relays... So many details!