Congrats jono - nice to pick the winner. Hard luck, buddy (my second!). Thanks for the votes MPRS and faiton, and the mentions, dorrien and rossim.
Thanks BBM2, and for the clips. Despite it being generated by a simple equation, I've seen it suggested that the Mandlebrot set is the most COMPLEX entity in the Universe. It's interesting how a shape like the original keeps reappearing.