In Visual Studio, I always use Ctrl+Tab and Ctrl+Shift+Tab to navigate between documents. I see that Eclipse has Ctrl
Looking at Keys in the preferences dialog, there are commands for "Next editor" and "Previous editor", bound to Ctrl+Alt+Right/Left.
I use Ctrl+Page up/Page down, but that might be specific to Linux because it's the same shortcut in other apps such as Nautilus and Terminal.
I just set the Next tab and Previous tab actions under Preferences > General > Keys to Ctrl+Tab and Ctrl+Shift+Tab respectively and it works just fine. Eclipse is highly customizable