I currently own a Velodyne dsp10 and will be upgrading to the SVS "new" SB12-NSD. It's the best option for me as well being Canadian.
I think the difference between the two subs will be very apparent. The Velodyne is more of a Futureshop special, and performs fine given the right environment, but the SVS is in a different league altogether. Don't take my word for it. Do what I am doing and read reviews, forum posts from users, etc.
Something I have heard in these forums is that SVS planned on offering free shipping in the new year (2013)...just checked and doesn't appear that they are. Maybe it's only for the Americans.
Nice room size BTW, should be a fun experience for you.
I think it's past time to upgrade my equipment and my room.