The S.T.A.L.K.E.R.: Call of Pripyat interview on PC Games is the English version of a conversation that's also available in German, chatting with Oleg Yavorsky of GSC Game World about their upcoming installment in the S.T.A.L.K.E.R. series of irradiated first-person shooters. They go into some detail about this project, and Oleg also grants that they have plans for a full-blown S.T.A.L.K.E.R. sequel, but he dismisses speculation they are set on the CryEngine for S.T.A.L.K.E.R. 2 as "pure rumor." He also outlines the system specifications for Call of Pripyat:

No exact ship date so far, but we expect to get the game out this Autumn already. The game should be pretty playable on a machine like:

- Intel Core 2 Duo E7400 / AMD 64 X2 5600+
- 2 GB RAM
- 512 MB DirectX® 9.0c compatible card / nVIDIA® GeForce™ 9800 GTX / ATI Radeon® HD 4850

As you know, S.T.A.L.K.E.R. has a tweakable menu with a lot of parameters to affect the performance. So you can adjust it as you like to achieve the comfortable play. Anyway, if you want to play it in max quality and resolution, go for as powerful machine as you can - there's never enough in this case.