*Sigh*
I'll have to wait a bit since I'm a Linux user. A few people have got the game running in Linux, but I heard it's slower than s**t.
*UPDATE:
As I was typing this, I came across this announcement from Transgaming.com:
http://www.transgaming.com/news.php?newsid=135"Linux gamers can experience the new interactive world of Half-Life 2 with TransGaming's release of Cedega 4.2, scheduled for December 7th."

That is the news I wanted, though I would prefer a native Linux client built by Valve.