There's been a few articles on the perils of sitting down for extended periods of time and how standing is much healthier for you.

I really want to raise my desk but it seems like a hack your own solution at this point in time given the prices of custom made standing desks.

Thus I've decided to build the last desk featured in this article and chuck my old one out. Ikea delivery next Friday! I've got to chop a few bits off to make it fit but it looks like a sweet design.
http://priceonomics.com/desks/ikea/#standing-desk

Anyone else feel like standing?

Some links:
http://lifehacker.com/5482856/exercise-or-not-sitting-at-a-desk-all-day-is-bad-for-you
http://kotaku.com/5933758/another-gamer-testifies-to-the-awesome-calorie+burning-power-of-his-standing-desk
http://blogs.hbr.org/your-health-at-work/2010/08/the-many-benefits-of-standing.html

And there's a ton of others, just google for more!