In a recent blog post, Micheal Sporn talks about the decline of the dope sheet, and why everyone should absolutely use them as a tool to aid in animation.

With the advent of the computer, and as you mention programs such as Toon Boom (which employs its own version of an X-sheet,) studios presumably have reduced their dependence on such charts. Since I know how valuable these sheets are in relaying information, I’ve kept them up in my studio. The sound track is read on the prepared sheets. I don’t demand that anyone fills them out - certainly not when many animators today are developing their animation in the computer - but the sheet gives an excellent way to plan the scene, and the animators can take that information and use it as they like.

We will certainly be using Dope Sheets on our film as I too believe that they are a great help to the animator. And if your looking for a resource for Dope Sheets, I have used these in the past and find them quite nice.

-Matt