The most important part to starting a business is the plan.
Canada Business Network - http://www.canadabusiness.ca/eng/page/2865/
Find out how to write a business plan, and access templates, sample business plans, market research information and statistics.
Business Development Bank of Canada - http://www.bdc.ca
Provides assitance on starting a business, from the idea stage, to implementation. This includes some great tools for business plans, including samples.