As a PC gamer, I'm ashamed to admit it...but I have never finished the Half Life series.  I recently purchased the Orange Box on Steam (during the thanksgiving special for like $7.50) and I've committed myself to finish the entire series.  I intend to mine the game for info not currently included in the respective wiki pages and update them accordingly.  I'm planning for an awesome experience.  I'll periodically update this space with impressions.