Choose a non-financial company, non-utility company, and determine the weighted average cost of capital for that company. Clearly list all assumptions that you make for your calculation, and make sure the assumptions are realistic. One of the assumptions that you may (and should use) is that the debt of the company is all long-term debt, and is all the same type of long-term debt (in other words, find one specific bond issue for the company and assume that all of the debt has the same characteristics as that one bond issue). www.finance.yahoo.com is a good place to start.