Cloud Systems' Pogoplug is the little Linux-based box that can turn any hard drive into a NAS/Server, streaming photos and music not only over LAN, but the internet as well. With the latest iteration, Pogoplug can now stream HD video.
The last time we saw the Pogoplug, it was shockingly pink and not exactly something you'd stick onto your manly, serious-looking desk, but now it comes in a "Biz" version which'll do all the same file-sharing, without the girly looks.
Like the prior model, the new Pogoplug allows for USB drive sharing over the Internet. It'll run for $129, still have no service fees, take up to four USB drives, and have Twitter and Facebook integration.