I like my keyboard and try to avoid using the mouse to much.
To open a command shell I used to press Alt+F2, type term, select gnome-terminal and press enter. Mouseless but a lot of steps. So I looked around and found that I can configure shortcuts on my own.
I need to launch gconf-editor and go to apps > metacity > global_keybindings:
Now opening a command shell is as easy as pressing Super+S whereby Super is the Windows Key on my Asus.