Need to download a song? SciLor's Grooveshark(tm).com Downloader is a great way to get music from the web! Just search by keyword, add it to the queue, and let the program do the rest! (Note: It is illegal to download music you don't own. WareWire does not condone piracy or illegal use of this program. Use at your own risk!)
Audacity is sound editing and production software that will allow you to edit and create WAV, MP3, and other popular audio formats. The fully functional editor also allows for sound recording on multiple tracks, layering, and other effects and mastering options.
Believe it or not, most commercially available software has a FREE twin! (Or at least distant cousin!)