MIXUK 07 recorded sessions are made public - you can see them at http://www.microsoft.com/uk/mix07/agenda.aspx
Note: At Day 2 there are two sessions of ScottG that cannot be missed if you want to catch up with all fancy stuff that coming in VS 2008
And of course the videos are streamed through Sivlerlight video player... Did you expected somethig else :) And very conviniently you can download them in .zip format for offline view