>Does anyone know if it is possible to download a trial version of SQL Server 2000? I understand that the Beta 2 is being released today.

Not available for download from what I can see. However, you can purchase Beta 2 for $9.95. Go to http://www.microsoft.com/sql/productinfo/sql2kord.htm. If you are an MSDN Universal Subscriber, it will be available in the July shipment.