You will like living in Canada, but I would stock up on the bike stuff before getting here. Prices are definitely higher here right across the board. And forget about getting stuff from online places like Perforjmance or Nashbar, unless you regularly return to the US and can have the stuff sent to a US address. The shipping is double the cost (many ebayers won't even ship to Canada anymore and when they do its a ripoff) and there is duty and taxes on anything over $20CDN. It is hit and miss as to when and if the duty/taxes get applied. Anything sent by Fedex, UPS, etc. is automatic $50 handling fee plus taxes and duty. USPS is the way to get stuff sent and sometimes the duty and taxes do not get charged, sometimes they do.

So stock up on anything bike related before you get here or if you go back and forth regularly then you can still get your stuff in the US and save bling.