Good job :) There is this nice video - ; previously there were some videos with a lot of serves in slow motion of some of the top players but now I can't seem to find them anywhere :/
http://www.eurovisionsports.tv/london2012/epg/index.html - here you can see when there is a scheduled broadcast on some of the 12 live feeds, located here - http://www.eurovisionsports.tv/london2012/index.html