Life Hacker to lead us to some of the more interesting projects. Today they pointed us to Curbly, a great home site that regularly features fantastic DIYs. I really love the look of this rolling kitchen cart, and think that the size might be just perfect for a versatile surface that doesn't take up too much room. My kitchen is not very large, but I would definitely have the space (and the need) for a cart of this scale.
Take a look at the step-by-step---it doesn't seem like too much to handle! And regardless of whether a filing cabinet works for your aesthetic, it ought to get your brain working to think of other non-traditional items that might be transformed in kind. Images: Curbly