'm gonna buy my first drum set.
I have 5 choices:
Tama Imperialstar series       575 + 60(pedal)= 635$
Mapex Q series                   472$
Mapex VX series                  671$
Pearl export EX825               650$
Pearl Forum                        600$

Cymbals:
Zildjian Z4 Planet Z 150$
Zildjian ZBT Pro 231$

What is the best quality-price
BTW I live in canada.

First of all, don't spend all you money on drums and not get any decent cymbals. (which seems to be what your thinking about doing). Bad cymbals one sound awful one, and two have zero resale value. I would suggest getting some drums used, I found a Pacific MX maple kit for 450 bucks (for example). When buying drums you should also be considering what kind of music you want to play. Im a funk drummer and my newest kit is a Grestsch Club Jazz. 473 bucks! (minus hardware), and I'm not a beginner.  If you don't blow your budget you will have money left over to get some decent cymbals which are just as important as the drums. Sabian XS or AXX are resonably priced for example. Don't assume you need an expensive kit.

All of the above.  Make sure the throne is not only comfortable, but sturdy and adjustable.  It's a key piece of drum equipment!