I'm with Stroggyman. Barkbusters are great and they've really made a difference this winter. I wear winter gloves but my hands actually work after a few hours riding instead of being gnarled claws!
I got mine from Chainspeed too but they told me the Storm S1 guards wouldn't fit my CB750. I contacted Rideworx/Barkbusters and they were brilliant in every respect, guards do fit my bike and I'm well chuffed!
If your bike isn't on their list just e-mail them and they'll help.