I just got a neat device today! The Zoom H4 Handy Recorder. This thing is great for doing on-the-go audio recording. The unit fits in your hand, records to little SD cards, two microphone inputs, and it has two microphones onboard for easy recording. The onboard mics are good, high quality equipment. I’m sure I’ll use it all the time.
Amazon has the H4 in stock for a great price. You might want to check it out if you need a nice portable studio solution. I had used one on-set previously, and the results were fantastic.