Last night, a few of us were fortunate enough to attend the premiere party for the web-based Supernatural spinoff, Ghostfacers. If you’re unaware, Ghostfacers follows a ghost-hunting duo named Ed and Larry, who originally were seen in the first season Supernatural episode, "Hell House". They returned in a season three episode entitled, "Ghostfacers" appropriately enough. Now they’re back with their own web-based mini-series, and we were on hand to see it and its stars first-hand. Here’s how it went down…