I'm not sure about Grado dealers there, you could try phoning around to the local Hi-Fi shops. There's also what looks to be the Canadian Grado distributor and Headphone Bar in BC who carry Grado. If none of those work, as mentioned there's eBay or I'm sure you could probably pick one via one of the sponsors like Todd The Vinyl Junkie.
Thanks to the advice I got here, I was able to source a local AQ DF dealer, National Audio-Video here in Edmonton. Nice bunch of guys and, as a bonus, they also pointed me towards a local audiophile group, the "Black Hat Desperaudios"...:)
Got another question though...I was looking at the Mediabridge USB extension cable as well as I don't like the weight of my HP cables on the DF but in Canada it retails through Amazon.ca for C$18.99+C$12.71 shipping!
There are other cheaper options available (usually in the 3 foot length) but I was wondering if a cheaper cable might have an impact on the sound in any way?
Edited by Alexdad54 - 10/12/12 at 9:56am