Regarding the cluster...
This article might be helpful: http://msdn.microsoft.com/en-us/library/ms345193.aspx
There are some special notes (problems) in there about trying to cluster integration services in an a/a cluster. Integration services will not run more than one instance on a machine, so when it fails over an tries to start up, it will fail, potentially affecting the group.
Microsoft does not recommend that the Integration Services service be configured as a cluster resource.
"The Integration Services service supports the administrative interface in SQL Server Management Studio for listing, starting, stopping, monitoring, importing, and exporting Integration Services packages. The Integration Services service is not required to design packages. The Integration Services service is also not required to run packages, or to schedule SQL Server Agent jobs that run packages."