
Draw and write directly on the screen of your MacBook without buying a new laptop--Axiotron now lets you convert your existing MacBook into an Axiotron Modbook, and is about half the price of a new Modbook. Just a word of warning: if your laptop hasn't already fused to your hands, this is probably what'll do it for good.
[$1,299 and up, Axiotron]
Related: Apple Announces iPhone Car, Save $250 on a Macbook Air