EDIT: This stored procedure has been updated.

The below stored procedure runs DBCC INDEXDEFRAG for each of the indexes in the user database that is inputted into the sproc.  I recommend putting it into an Admin database (hey just name it Admin!) rather than in master.  Then just schedule isp_DBCC_INDEXDEFRAG for each of the databases you want defragged.  Remember that DBCC INDEXDEFRAG isn't as good as DBCC DBREINDEX in large scale environments (for more information on this, see this article), so see my DBCC DBREINDEX weblog coming soon.  It'll be better than the other one I posted a while back.

CREATE  PROC isp_DBCC_INDEXDEFRAG
(@dbName SYSNAME)
AS
SET NOCOUNT ON

DECLARE @objID INT
DECLARE @idxName SYSNAME
DECLARE @SQL NVARCHAR(4000)

SET @objID = 0

SET @SQL = ''
SET @SQL = @SQL + 'SELECT i.id, i.name '
SET @SQL = @SQL + 'INTO ##Indexes '
SET @SQL = @SQL + 'FROM ' + @dbName + '.dbo.sysindexes i '
SET @SQL = @SQL + 'INNER JOIN ' + @dbName + '.dbo.sysobjects o '
SET @SQL = @SQL + 'ON i.id = o.id '
SET @SQL = @SQL + 'WHERE indid > 0 AND indid < 255 AND '
SET @SQL = @SQL + 'o.type = ''U'' AND '
SET @SQL = @SQL + '(i.status & (64 | 8388608)) <= 0'

EXEC sp_executesql @statement = @SQL

WHILE @objID < (SELECT MAX(id) FROM ##Indexes)
BEGIN

 SELECT TOP 1 @objID = id, @idxName = name
 FROM ##Indexes
 WHERE id > @objID
 ORDER BY id

 SET @SQL = 'DBCC INDEXDEFRAG(' + @dbName + ', ' + CONVERT(VARCHAR(50), @objID) + ', ' + @idxName + ') WITH NO_INFOMSGS'

 EXEC sp_executesql @statement = @SQL

END

DROP TABLE ##Indexes

RETURN 0

GO