I know some nice white shepherds, but I am not sure who bred them. Braehead would be a possibility (it's the right region), but I can't say for sure that they're from that breeder; I just never asked the owners. Anyway, the ones I've seen were good family dogs. Smart, trainable, healthy, and more athletic than many of the BYB and showline dogs I've seen.
Personally I would not buy one because they do have softer temperaments and they aren't all-out working dogs, and my own personal preference is for a higher-drive animal. But I'm a pretty hardcore competition person, so your priorities may well be different as to what you want in your dog.
ARCHMX TDCH Pongu the Insane, CD-C, RE, RL1X6, RL2X5, RL3X2 (GSD mix, b. Apr 2010)
Crookytail the Tigerwuff, RL1, ITD (Akita mix, b. Jan 2011)