Unreal Tournament III Black, which includes the new Titan Pack, is currently on sale through Valve's Steam service. Due to demand, the sale has been extended through March 22.
You can grab a digital copy for $12.
Valve also tells us that since the Titan Pack was released along with a free weekend for the game, the amount of people playing UT III has gone up by 2000%. They do not say, however, how many of those players have purchased the game. Either way, that's a nice increase for Midway and Epic.
I already snagged my Steam copy during the holiday sale of 2008, but would probably buy it now if I did not already own the game. $12 is a great value for a nice twitch shooter. Hopefully, more people are playing the game online now. Oh, and it now has Steam Achievements!