Because building computers is probably one of my best tasks, this is my latest setup for my business. Eventually, I will get an actual laptop-desktop converter, but for now this will do. All you need is:

Second Monitor
USB hub
Optional Equipment
Dual screen video card (already installed on mine)

All you need to do is:

Plug up your monitor and adjust the settings properly
Plug up USB hub and plug all you crap into it
Plug up all optional equipment
And oh yeah, most important, power cord
(easy huh?)

If you need any help, let me know!