Yamaha DTXpress/DTXplorer/DTXtreme

How's it going, eh?  

I was just surfing the net for where to get extra pads and hardware 
for my DTXpress II.  I found Drum Central, Drum Cart and Drumbalaya 
which are all in the United States.  Unfortunately Drum Central and 
Drum Cart won't ship to Canadian addresses.  Drumbalaya specifically 
indicates that new Roland and Yamaha gear can't be shipped outside 
the United States.

Any ideas why?  

Does anyone know someplace that will ship to Canadian addresses?  
Anyone know any places in Canada to get this stuff?

Thanks!

Good day, eh,
Rich.