Just to update since I have been using NEXEN8000 since May/June 2012.
Sincerely, I am happy with the performance of the tyre and in my view, it is a value for money tyre.
So far, it has been quiet, grip good in the rain as well as hot sunny days. Have done 220-240km/per hour on my 325 e92...hehehehhe.
Not to mention, it is not as hard as my previous CS2 RFT.
The only thing is (as updated before), the run in time quite long to get the best out of it. You need to run about 1000 km to really feel the grip.
In the nutshell.....I would definately change to NEXEN again.....Save on $ and performance not bad!