I use iProRecorder on my iPhone for all my interview and note-taking needs, since it's easy to not only record at different speeds and decibels but to email the audio to yourself. That last point is key for anyone who wants to back up recordings for later transcription. It stores hours of audio and allows you to slow down or speed up playback for easy review (unlike the standard-issue voice recorder on your 3GS). Plus, you don't have to fish around for another gadget in your bag — it's on your phone! iProRecorder will cost you $3, but to us Sugar Gals who are busy trying to get the scoop from the source, it's totally worth it.