0001036325-08-000043 SC 13G/A 1 20080213 20080213 Columbia Equity Trust, Inc. 0001316710 6798 201978579 MD 1231 SC 13G/A 34 005-80911 08602946 1750 H STREET, N.W. SUITE 500 WASHINGTON DC 20006 (202) 303-3060 1750 H STREET, N.W. SUITE 500 WASHINGTON DC 20006 DAVIS SELECTED ADVISERS 0001036325 850360310 CO 1231 SC 13G/A 2949 E. ELVIRA ROAD SUITE 101 TUCSON AZ 85706 (520)806-7600 2949 E. ELVIRA ROAD SUITE 101 TUCSON AZ 85706 SC 13G/A 1 x13gcolumbia123107.txt