http://www.rogueamoeba.com/audiohijackpro/
it works really good! the only thing about it though is that you can only record up to 10 minutes of audio before it fuzzes out if you just overuse the trial version (like myself).
its really handy to have for people who cant use audacity due to the whole laptop recording inline problem.
I've been meaning to get this again. I last had it in.. I think 2005?
Yeah I've been using this for a while now. I haven't had a problem with it since I've started.
The 10-minute time limit isn't that big of an issue, I just restart the recording at the 9-minute mark and put the pieces together in audacity.