Tascam has provided a fantastic 4-track digital recorder that fits in your hand!
You can capture up to four tracks using the stereo microphone and two line inputs. The inputs can accept line level (such as from a mixer or keyboard) or microphones, giving you an extremely versatile tool. The DR-40 records up to 96kHz/24 bit resolution, allowing you to record incredible quality audio. The DR-40 is built tough and is the perfect choice for everything from guerilla recording to sitting in the sound booth every Sunday.
The Tascam is also a great unit to pair up with your video camera to capture higher quality audio than most video cameras are able to.