spdr wrote:
My question is though, is a dragonstrike/stormherald useful for a shaman?
Yes/yes. The problem is that if you go Blacksmithing, you've basically pigeonholed yourself into Enhancement or you've just wasted a ton of time and money, so you better be damn well sure that you intend to stay Enhancement for the rest of your WoW career as that Shaman.
Other than that, absolutely, Dragonstrike and Stormherald are both great.