Get spaced used of all tables

DECLARE @TableName sysname
DECLARE @SpaceUsed TABLE(TableName sysname,
   Rows INT,
   Reserved VARCHAR(50),
   Data VARCHAR(50),
   IndexSize VARCHAR(50),
   Unused VARCHAR(50))
DECLARE Cur CURSOR FOR
 SELECT name
 FROM sysobjects
 WHERE type = 'U'
OPEN Cur
FETCH FROM Cur
INTO @TableName
WHILE @@FETCH_STATUS = 0
BEGIN
 INSERT INTO @SpaceUsed
 EXEC sp_spaceused @TableName
 FETCH NEXT FROM Cur
 INTO @TableName
END
CLOSE Cur
DEALLOCATE Cur
SELECT * FROM @SpaceUsed