Posting this so I don't forget it.
I've just people at work edit some content held in a database for display on website, but I didn't prevent them copying & pasting HTML tables. So now I need to remove them to keep things looking nice (and usability up).
http://alex.tsd.net.au/cpill/2006/09/12/regular-expression-to-remove-html-tables/
An alternative solution for me would be to remove the HTML in the SQL database itself. One suggested approach is plugging in the poweful C# RegEx functionality into SQL via the common runtime language..
http://weblogs.sqlteam.com/jeffs/archive/2007/04/27/SQL-2005-Regular-Expression-Replace.aspx