tx2step you can get the ones I got over at Fry's in their electrical tools section. I don't recall the brand (mine are orange)and they were about $60 if I recall. They came in a plastic tube and I just carry them in my van in that. I didn't get the different tips like mkoloj got. I would think that I could find the tips their at Fry's also. As for durability, as long as you don't go crazy and try to bend them too far they should last for a long, long time. They really are flexible. Since you are in the DFW area (so am I) Fry's or any place like that should have them. Not sure about some of the supply houses but have seen similar rods at either LOWES or HOME DEPOT. Old age, memory fails me. Vise-grip style clamps would work as well, easier on and off but in some cases the u-shape of the c-clamps is desired...what the heck, carry both kinds.
Dnkldorf, good call on the pvc and mc going over it.
