Hey George - great question - I found attending the SPPO meetings really helpful as I got to learn top tips from other folk. I'm mid rolling out o365 to my organisation, and it's not been easy to say the least. Each organisation has it's own interesting points. I recently did a 3D day, which was 'drag drop delete' day where staff were fed pizza and cake, in return for refiling their records into a shadow file structure that replicated the new information architecture in 0365 and we are now in the process of migrating that information up into the new system whilst they are creating live documents on the new system. All exciting stuff. I guess my top tips would be to get senior management buy in (the chief exec bought the pizza and cake out her own pocket) and not to scrimp on your marketing / comms campaign. As for resources, people whove done it, had their fingers burnt, learnt what to do and not to do are your best resources.
IRMS Vice Chair
Information and Records Manager