Rando, your thread has helped me immeasurably. I thought I'd pass this along:
Took my car in today due to some problems with the AC. Apparently the 2004 4Runners are subject to a "Silent Recall" regarding the AC. Once you take your car in with a problem, they will fix it for no cost. I don't know if you can take the car in "pre-emptively" or not.
Thanks again for the awesome write up.