If you're looking to get some more use out of an old machine, or just play around with multimedia programs but not interested in shelling out hundreds or thousands of dollars, download Puredyne. Based on Debian Linux, the downloadable disk image fits on a standard CD-R and will boot on almost any machine — you can even run it on your current system without having to partition any drives or re-install your operating system. The distribution includes all the software a multimedia maker might need, including Kino and Cinelerra for video editing; Audacity and Pure Data for audio; and GIMP and Inkscape for images, along with other fantastic open-source tools ranging from software synthesisers and drum machines to BitTorrent clients and encoding tools. Since all the software is free, it's perfect for educators as well as starving artists and enthusiastic hackers. It's a great introduction to Linux for creative types scared of anything besides Mac OS X — the interface is familiar enough to any casual computer user that you should be able to start watching videos from across your network with media player VLC in no time.