Alan Wake comes in february!

Remedy said that the version of Alan Wake will be available to Steam in February.The other good news is that the game wont use Games for Windows Live - many thanks to the Remedy!
For now there's no price, only screenshots

There are minimum system requirements:
• OS: Windows Vista or Windows 7 (there's  a big chance of supporting XP SP2)
• PROCESSOR: A dual core processor is required:
AMD: Athlon X2 2.8GHz
Intel: Core 2 Duo 2GHz
• MEMORY: 2 GB
• HARD DRIVE: 8 GB
• VIDEO CARD: DirectX 10 compatible or later with 512MB RAM
AMD: ATI Radeon 3650, 4450, 5550, 6450 or higher (per series)
NVIDIA: GeForce 8600GT, 9500GT, GT120, GT430, GT520 (per series)
• SOUND CARD: DirectX 9.0c compatible
• INPUT: Mouse and keyboard, Xbox360 controller also supported

Of course, for better performance Remedy reccomend up-to-date Quad-core CPU and VGA with arround 2k points in 3DMark Graphics Score.

Anyways, if you need more info, you can read their FAQ.