@gbn's answer is correct for any upgraded version of SQL Server.
For 2000:
SELECT * FROM
sysobjects
WHERE
UPPER(name) COLLATE Latin1_General_BIN <> name COLLATE Latin1_General_BIN
AND OBJECTPROPERTY(ID,N'IsTable')=1 and OBJECTPROPERTY(ID,N'IsMSShipped')=0
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