Kelsey Brookes (of lovedlockedloaded.com - based in AU) talks about some of the cool things in K2 setup and overriding, while at the same time highlighting how to make managing a Joomla site easy for clients by just having them edit the actual content they have in K2 and avoid editing modules or other parts in Joomla which are secondary to the content itself.
Content management as it should have been in Joomla