Jerricho,
If you want to get work done and not worry about viruses, Macs are great. On the other hand if you want the absolute fastest gaming machine around, look elsewhere.
Will you be buying this machine in Canada? If so, you should see if you could work it into a trip out here to Alberta. No PST will make it a little cheaper. The online Apple store may not charge PST either, but I'm not sure.
The weather might be a wee bit warmer for you too.
goates