Valve sends along an email, announcing that starting tomorrow at 1PM CST, you'll be able to buy Half-Life 2 through Steam. As noted before, Half-Life 2 won't be immediately available (with no release date set as of yet) but Counter-Strike: Source will be. This also means the CS:S the beta will end tomorrow. ATI/Half-Life 2 bundle owners can use their product key to get the Bronze version, or use the credit and then upgrade to Silver or Gold. Here's the pricing

1. "Bronze" -- $49.95
-- Half-Life 2*
-- Counter-Strike: Source
*(To be made available upon product's release.)

2. "Silver" -- $59.95
-- Half-Life 2*
-- Counter-Strike: Source
-- Half-Life 1: Source*
-- Day of Defeat: Source*
-- Valve's back catalog currently available on Steam *(To be made available upon products' release.)

3. "Gold" -- $89.95
-- Half-Life 2*
-- Counter-Strike: Source
-- Half-Life 1: Source*
-- Day of Defeat: Source*
-- Valve's back catalog currently available on Steam
-- Complete Half-Life 2 Strategy Guide from Prima Games
-- 3 different Half-Life 2 posters
-- Half-Life Collector's box
-- Half-Life 2 hat
-- Half-Life 2 postcard
-- Half-Life 2 stickers
-- Half-Life 2 Soundtrack CD
-- Chance to win a trip to Valve! (1 trip offered for every 5000 Gold packages purchased).
*(To be made available upon products' release.)