Hanging picture rail? Tara used a system a while ago presently, I want one! Can you update me where on earth I can find them?
Answers: Normally timber wholesalers carry picture rails. I battle to find some but found moulded ones that I fitted with hilti nails. I get pine and used varnish stain. It turned out very well. Otherwise you can gain the name of a company that does skirting and they can do a special run for you if you speak to the right person.
If you're contained by Melbourne (Australia) there's a shop called "A Lewis Timber Merchants" who sell picture guardrail: http://www.alewistimber.com.au
Also try Australian Moulding Company: http://www.australianmoulding.com/24.htm
The latter does Aus-wide delivery.