POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that I, Rogelio M. Rebolledo, hereby
constitute and appoint Joseph M. Joyce, Todd G. Hartman, Mark J. Geldernick,
and Matthew J. Norman and each of them, my true and lawful attorneys-in-fact
and agents, each acting alone, with full powers of substitution and
resubstitution for me and in my name, place and stead, to sign any reports
on Form 3 (Initial Statement of Beneficial Ownership of Securities), Form 4
(Statement of Changes in Beneficial Ownership of Securities) and Form 5
(Annual Statement of Changes in Beneficial Ownership) relating to
transactions by me in Common Stock or other securities of Best Buy Co., Inc.,
and all amendments thereto, and to file the same, with the Securities and
Exchange Commission and the New York Stock Exchange, Inc., granting unto
said attorneys-in-fact and agents, and each of them, or their substitutes,
full power and authority to do and perform each and every act and thing
requisite or necessary to be done, as fully to all intents and purposes
as I might or could do in person, hereby ratifying and confirming all that
said attorneys-in-fact and agents, and each of them, or their substitutes,
may lawfully do or cause to be done by virtue hereof.  This Power of Attorney
shall be effective until such time as I deliver a written revocation thereof
to my above-named attorneys-in-fact and agents.



Dated:  August 21, 2006					/s/ Rogelio M. Rebolledo
                                                            Rogelio M. Rebolledo




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