Complex did a great little roundup of ten desks of tech CEOs, including Bill Gates, Steve Jobs, Mark Zuckerberg (twice), and Steve Ballmer. Our favorites are a presumably-old Jeff Bezos shot, complete with CRT monitor, and another with a youthful Michael Dell (see above).
You can find all the photos over at Complex and, if you're in the mood to share your desk, you could also check out our forums where you'll find a thread just for that. On the other hand, if you'd rather just show off how awesome your PC is, our forums have you covered again.