it's on eBay from a UK company. i've used them before and they are very good.
Find Worlds Most Rugged Flash Light - Tektite Excursion LS4 on eBay within, Dive Lights Torches, SCUBA Snorkelling, Sporting Goods (end time 21-Nov-07 22:15:00 GMT)
i'm awful tempted by this torch. it's that or save the pennies and go for the handheld 10w salvo. it'll be my primary. don't think the sort of diving i do requires a 700 quid torch.
decisions... decisions...