Quoted From Gabe Newell:

The Half-Life 2 offers have been finalized. Details are pasted below. The Steam offers will be available for purchase next week. Those who purchase via Steam, will receive the final version of Counter-Strike: Source immediately. Half-Life 2 and other games in the Steam offerings will be made available to purchasers upon their release.

Retail Boxes

» Standard Edition
» Half-Life 2
» Counter-Strike: Source
Note: Ships on six CDs. Three different box designs will be made available at launch (cover characters change on the different designs: one is Gordon, one is Alyx, and the third is the Gman).

» Collector’s Edition
» Half-Life 2
» Counter-Strike: Source
» Half-Life 1: Source
» Half-Life 2 T-Shirt
» Prima Book Sampler
Note: This version will contain the games on a DVD.

Steam Offerings

» Bronze
» Half-Life 2*
» Counter-Strike: Source

» Silver
» Half-Life 2*
» Counter-Strike: Source
» Half-Life 1: Source*
» Day of Defeat: Source*
» Valve’s Back Catalog Currently Available On Steam

» Gold
» Half-Life 2*
» Counter-Strike: Source
» Half-Life 1: Source*
» Day of Defeat: Source*
» Valve’s Back Catalog Currently Available On Steam
» Complete Strategy Guide From Prima Games
» 3 Different Half-Life 2 Posters
» 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 product’s release.

No doubt about it, I am going to get the Collector’s Edition.