AC belt tensioner started to make helluva noise while cold a few weeks ago, so went ahead and changed it and both belts. Nice and quiet once again.
Once I was done and went to start, it only clicked. Has done it a couple of times before, too, but still started after a couple of tries. Has new battery/alternator and the cables are tight, so the only thing left is the starter, so I crawled back under there and noticed that the cables were slightly loose. Tightened them as much as I could in the tight space and so far starts nice and easy and no more clicking.
Probably should've changed the other tensioner, too, as well as the idler pully, but maybe later. They're pretty easy, anyway.