Desktop + Laptop, or just Laptop?
savant: As has been pointed out, a single machine works best. You'll have trouble synchronizing software and data between the machines at times, and you'll occasionally forget that crucial file for a presentation or meeting on your desktop. If you really need a desktop, get a second monitor, a nice mouse/keyboard combination, and a docking station if you think that is appropriate.PS.
Stop messing around and get a Macbook. Unless you need the enterprise warranty provided by Lenovo, you really have no reason other than "it's what I am familiar with" to stick with a Windows machine.