I've got an Ikelite housing for the Olympus TG-5 for sale. It was used for ~20 dives or so before my wife decided she liked the Olympus housing that she had with her TG-2 better. Overall it's in good condition, with some mineral spots on the front lens (which go away underwater), and some scratching on the back plastic. Comes in the original box, with the manual and accessories.
New this sells for $299, I'm selling this one for $150, shipped. If you want, I'll throw in an Intova double-arm tray (with DS mounts) for free.
