SELECT table_name = convert(varchar(30), min(o.name))

 , table_size = ltrim(str(sum(cast(reserved as bigint)) * 8192 / 1024.,15,0) + 'KB')

FROM sysindexes i

  INNER JOIN 

  sysobjects o 

  ON (o.id = i.id)

WHERE i.indid IN (0, 1, 255) 

AND  o.xtype = 'U'

GROUP BY i.id