Hi, I just finished the application process and waiting for offers from UWO. Because I decided to study MBA after I arrived Canada, it's a little hard from me to prepare them. No study materials, no colleagues. Especaily Computer Based Test is quite different from Papar based. So you'd better take those tests in China before September.
Ordinarily, those universities begin their admission process from the middle of October. So, if you can arrive Canada in the summer, you have enough time to settle down, and begin application as a Landed Immigrant. Especially if you want to get loan, you must live at there for 12 months before your enrollment. This year may be very difficult, It's hard to find a temporary job in Canada. Except your major is CS & working in some big joint ventures, you must spend months to familiar with local requirments. But at least, you can practice English, learn Canadian society.