Determing SQL Server Table Size Tip

From time to time i run into problems of where some new table appears on m  server and starts eating up all my space. Well i came across this blog posting a while back that does a great job of explaining how to determine the table sizes in a database in SQL 2000 it works in 2005 too.  check it out and let me know what you think.  http://www.mitchelsellers.com/blogs/articletype/articleview/articleid/121/determing-sql-server-table-size.aspx