0000807249-07-000071 SC 13D/A 2 20070306 20070306 Columbia Equity Trust, Inc. 0001316710 6798 201978579 MD 1231 SC 13D/A 34 005-80911 07674746 1750 H STREET, N.W. SUITE 500 WASHINGTON DC 20006 (202) 303-3060 1750 H STREET, N.W. SUITE 500 WASHINGTON DC 20006 GAMCO INVESTORS, INC. ET AL 0000807249 0000 133056041 NY 1031 SC 13D/A ONE CORPORATE CENTER RYE NY 10580-1434 9149215128 ONE CORPORATE CENTER RYE NY 10580 GABELLI ASSET MANAGEMENT INC ET AL 20020828 GABELLI FUNDS INC ET AL 19940714 SC 13D/A 1 coe02.txt EX-1 2 coeii.txt