Standing desks are all the rage these days. Its makers claim a bunch of health-oriented benefits, like better circulation and preventing the formation of a flat ass (they didn't say this? Really?) Regardless, the really good ones are unfortunately pricey, and there's also the matter of what you're going to do with your old desk if you do decide to go the standing route.
Then along came Lift. It's a convertible desk that turns your current desk into a standing one. The best part is that you can revert to its original height (and hence, seat yourself once more) whenever you feel like it.
Check It Out: Lift