[LOGO]  GFSB
        BANCORP, INC.
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FOR IMMEDIATE RELEASE                FOR FURTHER INFORMATION CONTACT:
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May 13, 2005                         Jerry R. Spurlin, Chief Financial Officer
                                     (505) 726-6500

                      GFSB BANCORP, INC. ANNOUNCES EARNINGS

Gallup, New Mexico - GFSB Bancorp, Inc. (NASDAQ SmallCap:  GUPB), parent holding
company of Gallup Federal  Savings Bank,  Gallup,  New Mexico,  today  announced
earnings for the quarter  ended March 31, 2005,  of $528,000  ($0.44 per diluted
share) and for the nine months ended March 31, 2005,  of  $1,329,000  ($1.11 per
diluted  share).  Earnings for the same  periods a year  earlier  were  $324,000
($0.27 per diluted share) and $1,152,000 ($0.97 per diluted share).

The  $177,000  increase in earnings for the nine months ended March 31, 2005 was
primarily the result of a $403,000 increase in net interest earnings, a $409,000
decrease  in  the  provision  for  loan  losses,  and  a  $119,000  increase  in
non-interest  earnings,  partially offset by a $387,000 increase in non-interest
expense and a $367,000 increase in income tax expense. The decrease in provision
for  loan  losses  for  the  current  nine-month  period  is  primarily  due  to
improvement  in loan  quality  and the fact that the  Company's  loan  portfolio
decreased during the period.

The increase in net interest  earnings was primarily due to a $642,000  decrease
in total  interest  expense  partially  offset by a $239,000  decrease  in total
interest   earnings.   The  increase  in  non-interest   earnings  is  primarily
attributable to a $121,000 increase in service charge income, a $14,000 increase
in gains from sales of loans and  securities,  and an $8,000  increase in income
from  real  estate  operations,  partially  offset  by  a  $24,000  decrease  in
miscellaneous   income.  The  decrease  in  miscellaneous  income  is  primarily
attributed  to  gains on the sale of other  real  estate  owned in the  year-ago
period.

The increase in  non-interest  expense is primarily  attributable to significant
increases in legal and professional  services fees associated with the Agreement
and Plan of Merger  between the Company and First Federal Banc of the Southwest,
Inc. announced on August 25, 2004.

At March 31, 2005,  the Company's  capital to asset ratio was 9.3%,  with assets
and stockholders' equity of $208.2 million and $19.3 million, respectively.

On August 25, 2004, the Company announced that it had signed a definitive merger
agreement with First Federal Banc of the Southwest,  Inc. ("FFBSW"), the holding
company for First  Federal  Bank,  Roswell,  New  Mexico,  pursuant to which the
Company will merge with and into FFBSW.

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                P.O. BOX 820 o 221 WEST AZTEC o GALLUP, NM 87301



Under the terms of the agreement, upon consummation of the merger of the Company
into  FFBSW,  each  outstanding  share of the  Company's  common  stock  will be
converted into the right to receive either $20.00 in cash or FFBSW common stock,
at the election of the holder, subject to an overall requirement that 51% of the
Company's total outstanding common stock be exchanged for stock. The transaction
is subject to various  conditions,  including  stockholder  approval of both the
Company and FFBSW, and approval by the applicable banking regulatory agencies.

Pursuant  to the terms of the merger  agreement,  FFBSW has  agreed to  register
FFBSW's common stock under the Securities  Exchange Act of 1934 and it will file
reports with the  Securities  and  Exchange  Commission.  In addition,  upon the
completion of the merger, its shares are expected to be listed on the NASDAQ.

At a  meeting  held May 11,  2005  stockholders  of FFBSW  approved  the  merger
agreement.  Subject to approval of the merger  agreement by the  stockholders of
the Company at a meeting  scheduled for May 18, 2005,  the closing of the merger
is expected by June 1, 2005.

This  release  may  contain  forward-looking  statements.  We caution  that such
statements may be subject to a number of uncertainties  and actual results could
differ materially and, therefore, readers should not place undue reliance on any
forward-looking  statements.  The Company does not undertake,  and  specifically
disclaims,  any obligation to publicly release the results of any revisions that
may be made to any  forward-looking  statements  to reflect  the  occurrence  of
anticipated  or  unanticipated  events or  circumstances  after the date of such
statements.

                                    * * * * *

This  document  may be deemed to be  solicitation  material  with respect to the
proposed  merger of First Federal Banc of the Southwest,  Inc. and GFSB Bancorp,
Inc. FFBSW and GFSB have filed relevant documents concerning the merger with the
Securities and Exchange Commission,  including a registration  statement on Form
S-4  containing a joint proxy  Statement/prospectus.  We urge  investors to read
these documents because they contain important  information.  Investors are able
to obtain these documents free of charge at the SEC's website,  www.sec.gov.  In
addition,  these  documents and any other  documents filed with the SEC by FFBSW
are available  free of charge from the Secretary of FFBSW (George A.  Rosenbaum,
Jr.) at 300 North  Pennsylvania,  Roswell,  New Mexico  88201,  telephone  (505)
622-6201 and any other  documents  filed with the SEC by GFSB are available free
of charge  from the Chief  Financial  Officer of GFSB  Bancorp,  Inc.  (Jerry R.
Spurlin) at 221 West Aztec Avenue,  Gallup,  New Mexico 87301,  telephone  (505)
726-6500.  FFBSW and GFSB and their  directors  and  executive  officers  may be
deemed to be participants in the  solicitation of proxies to approve the merger.
Information  about  the  directors  and  executive  officers  of FFBSW and their
ownership  of FFBSW  common  stock  and  information  about  the  directors  and
executive  officers of GFSB and their ownership of GFSB common stock is included
in the joint proxy  statement/prospectus.  Stockholders of FFBSW and GFSB should
read the joint proxy  statement/prospectus  and other documents to be filed with
the SEC carefully before making a decision concerning the merger.

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                               GFSB BANCORP, INC.
                   Selected Financial Information (Unaudited)
                  (dollars in thousands, except per share data)


             CONDENSED CONSOLIDATED STATEMENT OF FINANCIAL CONDITION

                                                           At Period End
                                                   -----------------------------
                                                    03/31/05  03/31/04  06/30/04
                                                   -----------------------------

Cash and investments                                  32,934    40,167    39,625
Mortgage-backed securities                            24,568    34,849    30,680
FHLB stock                                             3,394     4,393     4,409
Loans receivable, net                                143,326   155,618   152,842
Premises and equipment                                 2,366     2,566     2,514
Prepaid and other assets                               1,583     1,319     2,017
                                                     ---------------------------
  TOTAL ASSETS                                       208,171   238,912   232,087
                                                     ===========================

Deposits                                             136,509   138,466   133,860
Advances from FHLB                                    46,630    74,535    73,652
Other secured borrowings                               4,202     5,622     5,109
Accrued expenses and other liabilities                 1,527     1,752     1,334
Stockholders' equity                                  19,303    18,537    18,132
                                                     ---------------------------
  TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY         208,171   238,912   232,087
                                                     ===========================



                  CONDENSED CONSOLIDATED STATEMENT OF EARNINGS

                                       Three Months Ended     Nine Months Ended
                                      -----------------------------------------
                                      03/31/05  03/31/04     03/31/05  03/31/04
                                      -----------------------------------------


Interest earnings                        2,975     3,066        8,920     9,160
Interest expense                         1,144     1,326        3,560     4,203
                                       ----------------------------------------

    NET INTEREST EARNINGS                1,831     1,740        5,360     4,957
Provision for loan losses                    -       339           60       469
                                       ----------------------------------------

    NET INTEREST EARNINGS AFTER
      PROVISION FOR LOAN LOSSES          1,831     1,401        5,300     4,488
Non-interest income                        241       187          752       633
Non-interest expense                     1,222     1,168        3,861     3,474
                                       ----------------------------------------

    EARNINGS BEFORE INCOME TAXES           850       420        2,191     1,647
Provision for income taxes                 322        96          862       495
                                       ----------------------------------------

    NET EARNINGS                           528       324        1,329     1,152
                                       ========================================

Weighted average number of
  shares outstanding- basic              1,144     1,127        1,140     1,125

Earnings per common share-basic           0.46      0.29         1.17      1.02

Weighted average number of
  shares outstanding- diluted            1,204     1,183        1,200     1,181

Earnings per common share-diluted         0.44      0.27         1.11      0.97


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