InDesign has a really nice shortcut for jumping to a specific page in a document: Control/Command J. Prior to CS3 it activated the page number input area at the bottom of the document window, but a lot of people missed that, so Adobe changed it to a dialog which pops up.
However, when working on book files, this command comes up a bit short. If you want to jump to a specific page which might be in a different file (which might not even be open), there’s no quick way to do it.
