Im shopping around for a new/used flash. i have been checking ebay and im set on a Vivitar 285hx. Im not sure why but it seems to be quite powerfull and sought after?(and good for the price) I will settle for pretty much anything that will do a good job and last. It will primarily be used as a slave on a tripod for BMX photos. Budget is around $50-60bucks.(+I still have to pay overseas shipping) Can anyone suggest something similar/better to the Vivitar? Nikon strobes are way out of my range.