Best place to buy a long gold chain?

[NoMoreMrRight]

I bought some nice 'trinkets' from Chambers&Beau with a shorter chain but I have now decided that they would look so much better with a longer chain, 27'' should be long enough I think, in gold. It can't be too flimsy as the pendants are a few and not very light, I also prefer it to look 'substantial'.... any ideas of where is best to buy? I don't mind going online if it's somewhere recommended. Would want to keep the cost as low as possible as well.

Thanks.