The type of riding will sort of dictate the Stan's setup:
Super steep, high speed, free-ride type riding - use a UST rim / stans and UST tires
Aggressive trail / medium steep trails - I've had good luck with Stans Rims (Arch) or Specialized Roval Traversee wheels w/ Stans and non-UST tires: that is non-UST tires w/ decent sidewalls (e.g. Schwalbe fat alberts or Specialized Chunder 2.2). I've burped these setups on sideways landings or awkward entry's / exits from steep features.
Trail riding - you can probably get away with a similar setup as the aggresive trail setup and even lighter tires...but you sort of need to think, "smooth" while you ride.
Auk