Examining the historical Jesus in the synoptic gospels was an assignment in a religious studies class I am currently taking. It may be useful for your own studies and point to you more resources based on my bibliography.
From the introduction:
As any careful reader of the NT gospels will notice, Mark, Matthew, and Luke have striking similarities as well as significant differences. Each gospel has a different emphasis, a slightly different order of events, and a different target audiences. Each portrays Jesus in a different role. Therefore the first question is how are the accounts of the synoptics different? What are the differences, and what picture of Jesus can be gathered from each? Next, what does the result mean for the study of the historical Jesus? Is it important, and if so, why?