These are all critical pain topics among enterprises the world over. Fear not though (at least if you're UK based). You are guaranteed a fantastic learning opportunity by attending one of two all-day events presented by John Craddock and Sally Storey. These days are crammed full with detail, demos and real world how-tos. The sessions are billed at "400" level - you won't be disappointed.
If you are a system architect, a system integrator or senior administration, you should not miss this rare opportunity to spend a whole day interacting with industry experts and peers. You will find out about how to support multiple directories in your organisation, provisioning using MIIS, ADAM, Windows/Unix interoperability and identity federation.