Normally after an event Microsoft would put together a script to help download all the associated content. However, this year there was a little different, Microsoft published a handy tool "PDC10 Downloader app," a Silverlight 4 Out of Browser app that helps you queue up lots of downloads.
You can select entire categories of content along with the type of media to download and even tweak the selection by individual file. It's not a robust download management tool, but it'll get the job done.
It'll create a PDC10 folder in your My Videos library and save all files there. If a file already exists it'll skip the download, so if you have problems and would like to redownload a file just delete it and try again.
Click the button below to install: