Don't know if this has been posted or not, but looks like this game will be released in June 14, 2003. This was the release date on EBgames.com.

June 14, 2003? That's a long time. It's a good game, but what's the point of even bringing it to the PC market? The graphics will be dated compared to what's coming up on the horizon. I'm eagerly awaiting for Halo 2. Halo was easily one of the best co-op games I've played in a long time.

The point of bringing it to the PC is so that the majority of the people who said "Halo sucks" will end up buying it for PC, but still won't own an XBox.

and it'll probably get a wider multiplayer audience
and the controls will be so much better with keyboard/mouse

Until the keyboard and mouse meets the flood