Generally, the number inside the circle is your speed gauge. (6 in this case.) Though I haven't done any burst shoots with my D5000, I have used this for video a few times and had nothing but stellar results. Reviewing the pictures on the LCD is quick as well.
But the other works just as well for what I need. Plus, I got a card reader with it.
Edit: Oh! My card seems to be a little difficult to pull out... I figured it was just Nikon's way of ensuring the card doesn't come out accidentally. It doesn't seem to be stuck on anything, just in there tightly.