Steve, thanks for the TSBs!!!
I had the rack and pinion replaced, and that's when I noticed it. That new rack has since been replaced because the one I got was faulty (long story), but the vibrartion is still there even with the new rack and after a tire rotation.
I need to get the tires balanced, I've just been too busy. Hopefully that will fix it, but if not I was wondering where to look after that.
The vibration is more in the seats, but I can feel it a bit in the wheel.