I'm sorry OP that you've gotten so many terrible responses in this thread to your question.
The problem is, you are getting suggestions based on your GPU, and not on your actual situation, and I care more about you personally, than just recommending you a $200 GPU.
First off, you don't have the system, that means you have a LOT of flexibility.
Not a single person has talked to you about Freesync/Gsync.
Here is a QUICK explanation of Freesync as quick as humanly possible over Youtube:
https://www.youtube.com/watch?v=5Ey-KObDABI
Essentially my one line explanation: It makes low FPS feel higher. As long as your FPS is above 40, it feels like 60 FPS.
Now, why do I pick Freesync+AMD for you over Nvidia+Gsync? Because you're a budget gamer, and in your price range, you can't afford a Gsync monitor.
Now we can help dial this in but for example you could get:
http://www.newegg.ca/Product/Product.aspx?Item=N82E16824160275&cm_re=freesync-_-24-160-275-_-Product
Then get an appropriate AMD GPU for $200.
I personally don't know the best places to shop for AMD GPUs in Canada, but this is your best option by far.
A Nvidia GPU with a basic no feature monitor will provide an unequivocally worse gaming experience. There is absolutely NO reason to go for an Nvidia GPU + nonGsync monitor over an AMD GPU +Freesync monitor. It's an epic mistake.
Now for which AMD card to get exactly or whether you should get one? Well, there are new cards coming out, but that's the future. I personally would suggest waiting but if you want to game now, I'd suggest buying a GPU with the intention of selling it. Kind of like a rental. You'll lose $20-30, but you'll be able to game.
It's really up to you and whether you can wait a couple of months to start PC gaming. The only bonus side is this will allow you to save money and get a better PC. In general, I suggest getting the beefiest core system you can surrounding your GPU, and then upgrade the GPU as you please. But I also don't know how much money you can put away or whether you're earning money, or if you're a student or what not, so more information = better recommendation.