Demon's Souls was one of the most surprising--and easily the most difficult--releases in 2009. From Software is wasting no time with a sequel--er, spiritual successor. Dark Souls has been described as more or less an unofficial sequel to Demon's Souls, which mean only the most hardcore should apply here.
When will you have a chance to play Dark Souls? The answer is October. October something something. There's no specific date yet but the same month of Halloween is fitting. One can begin preparation...now.
As for me, I vastly prefer watching other people suffer through these games. This shall be no different.