Well, as I've commented in the past; my steering rack was replaced over 50K miles ago and started leaking after 8 months with some drippage in the dust boots. I was stupid at the time and took the dealership's word that that it was "normal" even though the visit wasn't documented. I've also had an issue where the vehicle would whine greatly on cold days for 3-4 minutes after start up. I traced the problem to the bearings in the PS pump where as of two months ago could be clearly heard coming from the unit using a paper towel tube to my ear.
Over the last year, my boots have been darkened from fluid on the bottom half of the boot; typically after a drive. If I let the vehicle sit for more than 3 days, it'll start to dry up.
I've tried replacing the PS fluid with Dexron V with no improvement and I've also added 1 1/2 times the recommended amount of Auto-RX and flushed it out with more Dexron V after driving almost 1500 miles. Finally, I started using the Lucas power steering stop leak. The first few tablespoons of it in my reservoir did nothing, but my second administration actually made the leak dry up almost completely! Also, the bearing noise is gone. I'm not sure if that's related or not, but I'm happy.
The only downside is the darkened fluid reservoir as you can see from slowly adding the Lucas power steering stop leak additive. I'll try and add pictures of the before/after for the boots at a later time.