While you're doing the Timing Belt, do the tensioner and pulleys. Its easy to do with the engine out of the car.
Id do engine mounts but thats just cause they're easy to do if you're replacing an engine and I wish Id done mine while I was there.
Before startup, make sure you've got plenty of clearance between your upper rad hose, the rad fans and the alternator pulley. Mine didn't have enough clearance, chewed through the hose and boom... coolant all over the engine 50km after I finished the swap.