So first we have the famous JC keynote. Some people may have watched it already
But there are more interesting videos. These panels
The Game of Making Games, about game design and production. It features Todd Howard (Bethesda Game Studios), Jens Matthies (MachineGames), Raphael Colantonio (Arkane Studios), and Ted Price (Insomniac Games).
VR Insanity, about VR of course. With the Oculus Rift dude, JC and Michael Abrash from Valve!
Celebrating id Modding’ panel from QuakeCon 2012. Jonathan Wright (id Software) who you might know from his Quake mods, the Zeus bot and Cujo [2nd from the right], JP LeBreton, Double Fine Productions [2nd from the left], Brendon Chung (Blendo Games) [left], Moderation by Justin Blankenship (Hit Detection) [right]
And the final duel of Quake Live
map 1 - http://www.youtube.com/watch?v=9EHeNvvKUds&feature=plcp
map 2 - http://www.youtube.com/watch?v=m0xSOPcSsSA&feature=plcp
map 3 - http://www.youtube.com/watch?v=grYmbICszBg&feature=plcp
map 4 - http://www.youtube.com/watch?v=dZqiW_SaMdM&feature=plcp
map 5 - http://www.youtube.com/watch?v=RGRHepsOeu0&feature=plcp