How Much Money Do You Need to Start Your Business?
"Whether your start-up costs total $5,000 or $500,000, you'll need solid numbers. The challenge is finding information that's credible and reliable. The good news: You can get hard data, plus valuable insight, from a variety of sources. Here are eight places to explore:
1. People in the business...
2. Sources of supplies...
3. Trade associations...
4. SCORE. The Service Corps of Retired Executives...
5. Business start-up guides...
6. Franchise organizations...
7. Business start-up articles...
8. Business consultants..."
From this entrepreneur.com article via this post from ESD.