When I attended IMATS NYC back in April I had the opportunity to see Hakuhodo's J Series brushes in person. I purchased two (see above), including the J5521 that I already reviewed. There are 85 brushes in this series, mostly made of either goat or horse hair as well as an impressive selection of duo fiber ones (a blend of natural and synthetic hair). The hair is not dyed, so there will not be any color bleeding issues, no matter what cleansing solution you use.
There are quite a few new brush types in the J series that don't exist in the other Hakuhodo ranges. These include fan brushes in various sizes, flat-top duo-fiber, and assorted blending and contouring eye brushes that make me ridiculously happy. The most expensive brush in Hakuhodo's J series retails for $111, but the majority of these tools are priced much (much!) lower, making them an excellent choice if you're looking for superb quality and performance but not ready to yet make a commitment to squirrel and sable hair.
The brushes are available from hakudousa.com. They ship all over the world and have knowledgeable customer service people who can advice you and make recommendations.
Which brushes caught your eye? What are you planning to buy?