In the long run I think your approach will be less expensive than buying "curtain" hardware and work well for you. If you are hanging cotton panels their weight is not all that much unless they are lined which would help for insulation and also sun damage to the face fabric.
There are also tracks that could be screwed into the ceiling, similar to what you see in exam rooms at a hospital. The tracks offer easy open close, more so than your cable. That would be my choice. If you want further into about the tracks, please let me know I will get some links together for you. I would also ad a wand (something like a plastic tubing that you hold to open and close the curtains, that way you are not getting your grubby little paws all over the fabric, lol). Please just a joke.. but the wand is a good idea.
Last edited by m1951mm; 08-17-2011 at 10:38 AM.