Ive just had really heavy curtains made for our bay. We have a bay window curtain pole from tesco of all places. It has curtain rings that are adapted to slide over the brackets. It's really sturdy and I've been impressed. It was really reasonable too, about £60 I think.
I am also looking for a cheapish track or pole, Olivia do you find that your curtains get caught when you pull them round the bay? Have looked at the Tesco pole but the reviews suggest this is a problem. I think tracks work better in bays, but even they are pretty pricey...
They don't get caught at all, to be honest, given the price, I wasn't expecting great things, but I'm really pleased with the result. I did see the reviews, but they are unfounded as far as I'm concerned.
I'm probably biased as I don't get on with the curtain track things- they never seemed to work for me.
I have got some bendy metal type track- it stands on struts about 4 inches so that the curtains drop past the window sill. If you see what I mean. So that the curtains fall straight, really good. I had a man in to do it for me . If that's what you are after I will try and find out the name.