SQL 2008 CTP is here, but what is going to happen for SQL 2000 version
Already I have been getting questions asking about what will be support for SQL 2000 version as the SQL 2008 is in CTP phase at the moment which is expected to release during next year.
As it look at the moment the support (official) ends by April 2008 and extended support with a payment option stops by April 2013. That gives the users to upgrade to SQL 2005 by 2010 atleast. For more information in this regard refer to LifeCycle support pages.