As far as ball joints go, read this:
What are the best ball joints for my Jeep Wrangler TJ?
As for track bars, I run Currie track bars in the front and rear. I honestly have yet to find another track bar that comes close to the quality, fit and clearance of Currie. They cost a pretty penny, but they are amazing, amazing pieces.
At 2" of suspension lift you shouldn't really be running aftermarket track bars though. I say that because most manufacturers recommend 3.5"+ of suspension lift in order to provide the appropriate amount of clearance for an aftermarket track bar. There may be exceptions to this (i.e. JKS track bars), but anything beefy like Currie, Metalcloak, IRO, and others, will definitely require a over 2" of lift, otherwise you'll need to add a bunch of bumpstop to accommodate the larger track bar and prevent it from bidding up under maximum flex.
Every case is different of course, I'm just generalizing.