Andrew Jackson at ACTPIX has a large fire resistant data safe for sale.
I know many of my clients have amassed a large collection of images that in some cases are of significant scientific interest. Protecting these images from damage is not an insignificant task and something that needs careful consideration.
You can view the safe model here:
http://www.thesafeshop.co.uk/products/4623.html
(Andrew has the full set of drawers and shelves)
Andrew can be contacted via his website http://www.actpix.com
Stephen