UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  November 27, 2007

Southern Michigan Bancorp, Inc.
(Exact Name of Registrant as
Specified in its Charter)

Michigan
(State or Other Jurisdiction
of Incorporation) 000-49772
(Commission
File Number) 38-2407501
(IRS Employer
Identification No.)

51 West Pearl Street
P.O. Box 309
Coldwater, Michigan
(Address of Principal Executive Offices)
49036-1995
(Zip Code)

Registrant's telephone number, including area code:  (517) 279-5500

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events.

          On November 27, 2007, FNB Financial Corporation ("FNB") advised Southern Michigan Bancorp, Inc. ("Southern") that the shareholders of FNB held a special meeting to consider and vote on approval of the previously disclosed Agreement and Plan of Merger between FNB and Southern and that, at the meeting, the Agreement and Plan of Merger was approved by the requisite vote of FNB's shareholders.

          On November 28, 2007, Southern issued the press release attached as Exhibit 99.1 to this report, which is here incorporated by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits:

99.1 Press Release, dated November 28, 2007.

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SIGNATURES

                    Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated:  November 28, 2007	SOUTHERN MICHIGAN BANCORP, INC. (Registrant)
	By:	/s/ Danice L. Chartrand
		Danice L. Chartrand Senior Vice President, Chief Financial Officer, Secretary and Treasurer

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EXHIBIT INDEX

Exhibit Number	Document
99.1	Press Release, dated November 28, 2007.