I hate to possibly jinx it by talking about it, but I changed out the fluid and filter this last weekend and so far I haven't experienced any of the symptoms I was having before the change. The fluid was exceptionally dirty and murky, so shame on me for not changing it sooner.
I didn't empty the torque converter, so I'm thinking I will drain the pan again in the near future and refill again with fresh fluid.
Also, I somehow managed to break my speedo cable while changing the ATF and transmission filter.
http://www.peachparts.com/shopforum/tech-help/394076-whats-cable-hanging-down-my-transmission-speedo-cable.html