An Eclipse plug-in that I have begun to regularly use is Wicked Shell. Wicked Shell provides direct access to the operating system's shell (Cmd, Bash, SH etc.). In fact it is not an actual shell, it only acts as a window to the underlying shell using a SWT text widget to transfer commands and display output. The result is having an Eclipse view that behaves as a shell.
As with any Eclipse view that is regularly accessed, I would suggest setting up a shortcut key binding for Wicked Shell. On my installation I chose
Alt+Shift+Q, S as the combination did not conflict with other pre-set bindings.