The pre-sale has begun and combines the core game and Expansion Pack 1 for $9.99. Pre-sale purchasers will be eligible for the launch promotion as well.
Just head over to Steam and set up an account. If you don't have an account yet, it's even easier!
Duels of the Planeswalkers players will enjoy the benefits of the Steamworks' features included in all PC versions, such as auto-updating, Steam Achievements, Leaderboards, downloadable content, ability to access from any computer, multiplayer matchmaking and more. Learn more from the official press release!