My x has 67,000 miles on it so I am in the same boat you are. Here are a couple of things I have recently repaired. As for sensors I would also look into replacing the crankshaft position sensor. If and when this fails it will put your transsion into failsafe mode which makes your car run like it's missfiring. Also things to look for that can go wrong front wheel bearings rear lower control arms. The dreaded oil seperation valve, and wheel speed sensors. Just to name a few.

But man do I love my X!!