Found this little info on Boeing.com. For you would be airline CEO's, maybe you should check it out when it comes online in July!
Starting an Airline
"Starting an airline is a complicated business. Where do you go to find the information you need to finalize a business plan, compare airplane performance and economics, source aircraft, and locate aviation consultants? Boeing has set up a startup airline support team to help you find the answers to those questions.
You'll also be able to find links to resources and information on this site beginning in July 2006. Information topics will include:
Business plan and financial model review
Aircraft analysis and selection
Buying a new aircraft
Used aircraft resources
Obtaining an airline operating certificate (AOC)
Links to industry resources (lessors, financing, consultants, etc)
In the meantime if you have questions about starting an airline, please e-mail our team directly at firstname.lastname@example.org."