Thought of sharing Valuable Videos by Our SCCM Guru Wally Mead from different Locations.Worth Watching it 
Since there are many videos from Wally Mead On SCCM 2012 ,Posting all in One post may slow down the browsing of website initially for sometime.so splitting the videos to multiple posts with Tile of the videos in each post.
System Center Configuration Manager 2012 Windows 8 Support, Wally Mead
httpv://www.youtube.com/watch?v=0LTMd8H7iqM
ConfigMgr 2012 Software Distribution Part 1 – With Johan
httpv://www.youtube.com/watch?v=15wPybTZvjg
ConfigMgr 2012 Software Distribution Part 2 – With Johan
httpv://www.youtube.com/watch?v=_kZf9gtUIkU
Interview with Wally Mead about System Center 2012 Configuration Manager and SP1
httpv://www.youtube.com/watch?v=n8r_Apm7sgE
SCCM GURU Webcast Series - Episode 1:
httpv://www.youtube.com/watch?v=p4BOrAw8noI
Rest Go Through http://eskonr.com/2012/11/sccm-2012-wally-mead-sessions-2/