I've been looking at strategies of artists who use video, in particular recent Turner prize winners Duncan Campbell and Elizabeth Price. Campbell's piece 'It for Others' is about the relation between objects and value systems. I've watched some of it and find it quite hard to get through in parts, but I like his strategy of narration. Elizabeth Price's piece 'The Woolworth's Choir of 1979' is only available in small snippets online. Her strategy  of split screen and text narration is also of interest to me.

Duncan Campbell: https://www.youtube.com/watch?v=-IpQv2SFA0A
Elizabeth Price:  http://www.motinternational.org/ep-projects-woolworths-choir.html

Duncan Campbell, 'It for Others', Installation View

Duncan Campbell, 'It for Others'

Elizabeth Price 'The Woolworth's Choir of 1979'