Ummm, it might just be me, but in my earlier days, I too thought that a good idea, and used a 6inch Mundial chef's knife as a makeshift camp knife. But once the going got hard, the edge started chipping out excessively - like 1/8inch big chips if anything remotely hard was hit. So in my own mind, unless you can get a nice carbon steel one ...
A friend of mine uses a "Chinese Chopper" or forged meat cleaver in carbon steel (??? unknown type of steel) that is just phenomenal in the field. It is a $10 piece he picked up in a Vietnamese grocery store here in Melbourne and it was probably made in China. It is full height slightly convex ground with a 6.5inch straight edge and is a full 5inches wide, yet only just under 5/32inch thick. He uses it to split wood, slice up camp dinners and also to leg deer !! It looks absolutely crap, but performs exceptionally well.
The "sheath" is just a folded piece of leather which he ties on the blade and he pops the whole thing in his backpack. Jason.