I'm looking for a quick way to grab audio playing from my computer (from websites/media players etc.).

Any ideas?

If you want the audio coming out of your speakers, I recommend vlc

Audacity

By far Audacity, just set the Audio Input to your sound card.

a third vote for audacity. I've mentioned it here to someone before.

If you're gonna use it though, you just need to find the lamemp3 encoder so you can save your files as mp3. A simple google search will net you that though

Oh, awesome.. thanks guys.