http://en.wikipedia.org/wiki/Christian_Marclay
Does lots of collage work and worth checking out for The Clock, which I may have already posted here, but also he's a bit deal within the DJ world (apparently he invented messing with records on turntables from a performance art perspective)
Other than being a super rad artist, his work applies to my project idea in that I want to do something where it's disorienting to look at up close but comes together to form a larger image that works as a coherent portrait.
For the next project, I think I want to shoot a giant portrait of a day made up of scenes of lots of different people as the day progresses. I'm not sure yet if I should put them together like a collage or in uniform, next to each other.