Fcuking hell look at the price!
Why not the much cheaper "bergen and holdall" approach?
If you really want a box buy those plastic boxes with shelves in that mechanics and electricians use from B&Q, or nab the one your Dad keeps his DIY tools in in the shed! Better than shelling out 120 beer tokens!
How about an MTM 'Sportsman's Utility Dry Box'? The larger 'SPUD-7' model has pretty much all the same features and is 1/5th of the cost. My target shooting club uses a couple to store the club's ammo on the range. I can confirm that they are of good quality and very rugged. They have 'O' ring seals to keep everything dry and a couple of locking tabs for padlocks.
Tim Hannam in Leeds is advertising them in Gun Mart for Â£24.68. Number is 01977 681639.
If its for a Tour Labrat then def go with the footlockers suggested by Inf/MP. They are cheap and nasty but do the job. If not then look around the ones Gun_Nut has suggested look good. If money is no object then Peli cannot be beaten for quality or variety. Check EBay, there are loads of genuine and replica models for sale.
Its a big plastic box px normaly sell cheap plastic one tough enough to use as lugguge .Not as gucci as the space box but
apart from holding stuff how tough do you need it . if it was made out of chobham some theiving bastard would still get in if he so desired imho.