I love this game! One of the better games I've played in a long time. Not a straight FPS ala UT or Quake, and not a straight RPG either. It's part Shooter, part stragety, part role playing. I really like it. You have to manage your resources very well. You find this out later in the game when you take huge amounts of damage from radioactive rooms, electricity (damn spider bots!), etc.
I've beaten the game once on "easy" I'm now about halfway thru on "realistic". I don't really know if realistic is harder than hard..never played on hard. Easy was hard enough!
R they really coming out w/a Deux Ex 2? I didn't hear anything about that. Got a linky?