For those of you that have ever clustered SQL Server 2005 before. Here is a good reference from Microsoft about clustering Integration Services. As you may well know, Integration Services is not ‘clusterable’ out of the box during the installation which is kind of a drag when your trying to pitch Integration Services as part of the high availability solution. I have used this solution many times in the past to provide the kind of full services cluster solution that many customers expect.
*One note: I would highly encourage you to read the aspects of adding or not adding Integration Services to the same group as the SQL Server. This simple decision has consequences!

Clustering SQL Server 2005 Integration Services