Sorry i dont know much about the compact cameras, i only know about the Panasonic TZ1 as i have that one as a second camera, i was rather hoping
that someone else who knows more about them would jump in with a bit of advice.
I just looked up the panasonic on the Digital Camera Company on the web and
they do a package with a 512mb Sd memory card and soft case for £164.87.
An added feature of this camera is that it has a seperate lens cap, which is attached to the camera by a cord, rather than the inbuilt sliding lens cap, which can be prone to sticking if it gets dust and grit stuck in it(which it surely will on a building site)
As for cost, your husband probably earns more than he is telling you anyway
so he can afford it
Good luck