Fission is a really gorgeous, simple audio editing application for chopping up, fading and trimming audio files (like when you’re turning your record collection into MP3s and recording podcasts, for instance). Beautifully designed and does all the niggly things I’ve been trying to persuade other more complicated apps to do for ages. A proper software treat (cheaper if you’ve also got Audio Hijack Pro, an equally brilliant app for nicking RealAudio streams). OS X Only.