Cable saws have the disadvantage of being two handed, it makes them clumsy to use on sectioning felled wood. A folding buck saw is directly better at that, however it more awkward to use felling the wood in the first place. You can also get folding saws which are similar in appearance to a large folding knife. These will take a small tree down easier than a folding buck saw and cut it up faster than a cable saw. Of course cable saws require much less free space to carry.
The awkward problems with felling with the folding buck saws are due to working around the limbs, if the trees in your enviroment are not as bushy, this is not going to be as much as a problem. Of course, a decent machete type tool will limb out a working area in a few seconds, but then again it would probably take the tree down just as fast as a saw unless it is a fairly decent size saw.
Lee Valley has folding buck saws and folding pruning saws which work well on small trees.
-Cliff
[This message has been edited by Cliff Stamp (edited 10-27-2000).]