I'm a bit of documentary addict; I can't get enough of PBS. Over the years, they have had a series of great documentaries relating to the Balkans; including the groundbreaking "A Cry From The Grave" documentary on the Srebrenica massacre.
Unfortunately, the only documentary I have actually seen has been "A Cry From The Grave"; fortunately, PBS has some very detailed webpages on their other documentaries including video clips, interviews, journals and more.
This past spring "The Men Who Got Away" which focuses on Karadzic and Mladic aired, below is a very detailed website about the documentary (and includes a lot of video files as well).
The Men Who Got Away