First you need a camcorder with an external microphone socket and, if you are supplying an audio input from, say, the headphone out of a sound system you will also need an attenuator lead. (I got mine from SESCOM) The attenuator lead will reduce the "line" input to a level for the camera mic input.

I use a Panasonic HC-V750 camcorder. It has a 29.5mm wide angle lens setting so should be wide enough. It also has five recording modes which allow more video to be recorded with lower quality. For example on a 16Gb SD card, the highest quality is 1hr 20min to, on the lowest quality 6hr 40min. You can record using a power supply from the mains as well as battery.

On your PC, Windows Movie Maker and Windows DVD Maker are supplied but I find it better to use a proper Video Editor (mine is Corel VideoStudio Pro X7) You will need to render your raw video to a suitable file for SD DVDs and then burn the DVDs using this ready made file.

Hope this helps.