I use Cruise valve springs which I got from RHD Japan.
Whether your gonna be spinning the motor more then the factory rev limit or not, if your building up the cylinder head I would reccommend uprated valvesprings because there the weakest part of the valve train. Weak valvespring will limit the engines ability to make consistent hp at high rpm's.
If you go for the Brian crower's just check with them the specifications of the spring, mainly base spring pressure and at how much lift of the valve timing at which coil bind can happen.