Others brands to look for in your neck of the woods:
Liberty, Gepco, Belden, Canare...
Since 90' I have installed probably 100 miles of cabling from medium sized venues to wiring edit suites. Other here have most likely wired a couple 1000 miles worth over their career. Just get a good, well know, well respected brand and enjoy the music.
I find it hard to believe that even with customs Monoprice is going to hit the same price as Mogami ($4+ /Foot) or especially Kimber(I think ~$8/foot).
Just go to newegg.ca and search for speaker cable. Not sure what you are after here.