Something I heard from a friend, apparently the full version is download able after registering on the site. The official voice actors come up and do skits and stuff. For like 2 hours. But, it was in Japanese, with no English subs.
Online Video: Suzumiya Haruhi no Gekisou - DVD 01 (RAW) | Veoh Video Network Online Video: Suzumiya Haruhi no Gekisou - DVD 02 | Veoh Video Network