help selecting equipment

I have recently purchased a Panasonic AGDVC30 camcorder with a mind to start filming weddings. In addition I am looking for an extra pieces of kit, namely a a good camera mounted light.

I feel I need a good camera mounted light, as I don’t have time to set up studio lights and want something highly portable / adaptable for wedding / reception occassions. Could anyone recommend a fairly cheap, highly portable light setup that would do the job for weddings? (maybe around 100 pound)

Hope someone can help

Thanks dave