It's been around for some time, but seems to fly under the radar. For people that are just getting into sound editing, for podcasting or just for fun, the free cross-platform Audacity is worth a download. It has more than enough features to keep you busily hacking together audio files. It features recording, import/export, splicing and editing, and effects, and has a plug-in system that makes it extensible. Oh, and did I mention that it's free? If you're looking for a way to record and edit sound on your computer, be it a PC, Mac or Linux box, this might be your solution. And if you're looking for a fun audio project, find yourself a 2 year-old, and coach them through saying a greeting for your answering machine, preferably using lots of long words. As long as you can record one or a few words at a time, you're set; just edit it all together after the fact.