You should consider shopping at
Apple Canada on-line and buy refurbished. Aside from the fact that the items aren't technology from five minutes ago, they are close to buying new - including warranty - just a lot cheaper.
Further, the stuff just arrives at your door and is often free delivery.
I bought my iMac via the so-called Canadian Apple Store (located in Rancho Cordoba, CA).
I didn't notice any second-hand deals online. But I likely wouldn't go that route because I don't like buying second-hand anything, since whenever I have, it's wound up costing me more than new because of hidden defects and their ilk).
Since I don't know anything about external drives (as noted earlier) and until I do no purchase will happen.
And Apple's policy is that only purchases over $75 get free delivery.
