Xbox 360 magazine has a nice 
summation of a Game Informer article which unveiled some new information about 
Bioshock, Irrational's spiritual successor to 
System Shock.  Rather than being set in the future the game is actually set in the 1960's as you try to figure out why you are stranded in the middle of the ocean surrounded by dead bodies.  Irrational has a pretty good track record so you will probably want to add this to your wish list for 2007.  I just hope we get to see some of the game at E3 in a few months.