Thank you, all!
Yes, I am planning on buying the 24-70 f 2.8 lens. (I have a 28-80 on my film camera now, and use the 2.8 for depth of field). I do most photojournalism work, so things (i.e. people) are generally moving around, but not with the speed of sports.
The thought of being able to grab a shot truly quickly is mighty appealing. To me, there is nothing worse then that feeling of: attempting to focus, camera can't quite get it, I reframe a little (maybe go for a slightly more contrast area), refocus and hope the focus kicks in, camera still can't get it, I reset the focal point or my framing just a bit, again, try to refocus, etc. -- only to have lost the shot at this point, as the camera didn't respond more quickly. By then, I'm worried that trying focus, recompose will again mess with my composition/depth of field.
I never use the A1 Servo, would make a difference? In other words, can you "fix" the sluggish AF by simply shooting in Servo?
My film camera is an A2E which has that old eye tracking control (where you look is where you focus). I know a lot of people didn't care for that, but for me, it has worked wonderfully, otherwise, I just use center-point focus, too.
I need to learn more about the cross-type focusing, I've tried online and still don't get it entirely. My understanding is that if there isn't a cross point, it can be difficult to focus in that area. Because I am coming from a film camera, it's hard to know if a digital slr w/ fewer cross points will be any more difficult to focus then what I am used to now. I sort of get the feeling that digital technology, by it's nature, makes it more difficult to focus w/o a lot of cross-points (compared to plain old focusing w. film cameras). But I may be way off here.
StudentofLight, that's helpful to hear that I should shoot a little wider. I'm not yet a "post" person. I like to take pictures and compose in the camera. And really don't care for sitting at computers. If I go w/ the 6, I'll take your advice, though. Thank you!
Marsu42, what do you mean that you "find it to be rather erratic with my 100L lens when trying to lock on low-contrast surfaces, that's because @f2.8 it's non-cross." I didn't realize the f top effected the cross points. (Oh, so much to learn!).
As for video, thank you, Niki. Thought it was RAW but I'll check. Unless I can get af on video, I'm going to mostly ignore the video for the most part, and use my old vid camera.