I have R4's in stock and ready to go at any time. PM me if interested.
Here are my latest prices:
1GB combo: $60
2GB combo: $72
Prices are payable in usd, and include shipping. I will declare a low value for customs, so there will be no taxes or duties charged.
The Kingston 1GB memory cards I am getting are now made in Taiwan; the 2GB ones are currently from Japan. This can change either way at any given time however (not that it really matters either way). In my tests, Kingston MicroSD's are faster than Sandisk or Kingmax. But if you prefer those brands, let me know.
PM me if you're interested! Ask around if you want feedback; everyone has been really happy with my service.
For the latest CAD > USD rate,
check here. It's pretty much 1:1 now (actually CAD is worth a penny more now).