I went for a ride to CMC Clay Cross today to meet up with my mate John and whilst there I spotted a pair of Dainese Galvestone D2 trousers at half price (£115) a bargain and in my size.
They seem to be good quality and well made. One odd thing is they have an external pocket for the knee protectors.
Being Gore-Tex I expect them to be fully waterproof (time will tell).