Hi,
I just want to add my experience with my friend who owns a Nikon D200 with a highly regarded 18-200mm zoom.
Since he showed me his camera, I told him how much praises I heard about Nikon's AF speed and fps. I told him that my K100D is very slow in low light even with a considerably fast lens (43Ltd).
Interestingngly he told me that he's surprised that I thought that way. In his experience using D200 at 5 fps, maybe he only got one or two the most that are focus and that's if he's lucky.
Most of the time he's not relying on the speed anymore since he's not getting good result. So he just use one shot at a time.
Well, he's not a sport photographer either. But that was a surprise to me.
Now that Phil had done the test w/ D300, it makes me sure that speed is nothing if you can't see the picture.
Just wanna share.