Audacity
| | Audacity is free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems. | |
On top of that its easy to use, and very powerful. And pretty compact as well, so even if you don't do a lot of audio editing its worth the HD space.
Videolan VLC Media Player. It does what it says on the tin. It plays media - pretty much any media you choose to throw at it actually...and it'll do it cross platform (Windows, Mac OS X, BeOS, and more flavours of Unix than you can shake a stick at.
Sweepi The first thing I run on any machine...Sweepi has three modules. One to remove erronious shortcuts from your machine, one to securely delete files and Sweepi BootManager. BootManager lets you kill all those annoying, resource hogging pieces of bloatware the PC manufacturers and the likes of various fruit-inspired computer manufacturers believe really, really need running in you system tray all the time. Personally it has never let me down, and its the app I'd least like to give up.
On a Linux-ey note Ubuntu have announced the release of HardyHeron/Alpha1. The final release version (the replacement for the current Gutsy Gibbon) is due in April 2008. Read more about it here...
HardyHeron/Alpha1 - Ubuntu Wiki