It seems a few people have the Diasec ones (Diamond Security). These are the ones I was planning to get.
Not sure I will just yet though as they most likely won't be allowed for Desmo Due. Can't see the 996 being on the track too much this year, maybe for the TA's ...
I didn't get this weeks MCN but they have been advertising in there for as low as £130 for a set. Not sure if that includes the set with the heatshield though.
I'll be at Ally Pally tomorrow so I'll let you know if I see them and how much they are.
Oh, and I should add, in answer to your question, that they are consider the low to mid range in terms of quality and there are some that are supposed to be a lot better. For me, I think they are enough. I think Weeksy has a set as well for racing. Could be wrong on that one though.
I got a set for christmas. I've got nothing really to judge them against but they appear well made, get the tyre nice and hot and are easy to fit. £130 from Diamond Securities via Ebay.
Dont forget that depending on the track you go to you may need a 2KW genny as well.