FLCEGKid,
When mine went out, it was a mild, uniform vibration. It felt like I was driving on a roughly paved road. Maybe I just repaired it before it got very bad, but the symptoms were not severe, and they existed at all speeds. It was noticeable when I went straight ahead, or when I turned one direction, but the noise and vibration stopped when I turned the opposite direction. When I jacked up the car, and shook the wheels, there was quite a bit of play in the wheel with the bad bearing.
I'm having symptoms now very similar to what you describe, but I don't think it's the wheel bearings. I'm getting a slight to moderate vibration most of the time, particularly at speeds above 50, but very noticeable when I brake. I wish I knew what it was. From my experience, and from what I've read in other posts, a tell-tale symptom of a bad wheel bearing will be that the symptoms stop when you steer to one side, but not to the other side. I'm not getting that now.