I let my computer spend the better part of the weekend downloading 30GB of videos from the Norwiegan Developers Conference that happened earlier this year. I watched a couple videos completely, and started a handful more. The content is really good, and there are tons of videos, many of which have very interesting subjects. I can't wait to dive in more.
I suggest you fireup your favorite bittorrent client, and head over here to start downloading.
Roy Osherove has videos of his presentations available on his video website to stream if you want a sample of what to expect. Roy also has embedded several other videos from the conference on his blog. He also lists some other torrent files in his blog, but these do not have the full set of videos, so I recommend the other torrent file.