Hello welcome to ASC, I highly recommend you start by reading and then re reading the faqs in the faq section. Please do not take this badly as it is not meant as an insult but your starting budget is a little low, just a bit. Airsoft in Canada is very expensive. I recommend that you get in touch with an age verifier and get age verified. And then look in the classified section on asc for some good deals on a used gun. I say your budget is a bit low because it will probably cost you about $550-$600 to get started. Remember that the gun is only a small part of your gear if you wish to play at events. You will also need:
good eye protection
bdu's (camoflauge clothing)
and some way to carry your magazines and at the very least a bottle of water. Most players choose a tactical rig for this but you could just shove them in youe pockets for now.
After reading the faqs you will no doublt have some more specific questions which we will be glad to answer. Enjoy your experiance on ASC.
EDIT: Also please fill in your user profile so that poepple know the are you are in.