It's already on the list, but I thought the video on hacking cable/satellite TV was amazing. I've done software reverse engineering, but don't have any experience with hardware RE.
It was great to see an overview of the process, and especially, how someone de-caps a ROM chip and reverses the code stored within.
In that case, i.e. without any specific ordering besides the grouping, you could just use the existing list of talks [1]. The conference schedule [2] has a rough grouping into tracks but while you get to the presentation slides from there, there seem to be no links to the recordings.
A really cool talk was the Dash button talk. The presenter exploited a bug in the audio stack, or as I like to think about it, he got the firmware by singing the secret code word.
