A Master Budget for Managerial/Cost Accounting

You want actual numbers and formulas from a company's budget or just generic sample spreadsheets?

generic sample spreadsheets so I can put in my own numbers

Here are a few sites to explore to see if they fill your need:

http://www.financialmodelingguide.com/templates/

http://www.spreadsheet123.com/

http://www.exinfm.com/free_spreadsheets.html

http://www.business-spreadsheets.com/solutions.asp?q=Business+plan

excellent thank you

Since you are taking an accounting class, this will also be of interest to you:

http://www.analyticsolutions.com/index_files/page0017.htm

It is an article called Eliminating Risks in Spreadsheets: A Guide for Internal Auditors to Regain Control and Limit Exposure.