A mighty mouse DOES have a right click. Try it sometime.
If you want something with a right mouse button (even though it's not necessary), try the Logitech VX Nano. I have two (one for work, one for home) and absolutely love it.
As for external HD and monitor, you really need to just find something you like yourself within your price range. Shop around.
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"Without passion man is a mere latent force and possibility, like the flint which awaits the shock of the iron before it can give forth its spark."
— Henri-Frédéric Amiel
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