As the plot I would like to use a very traditional quest. The quest is quite simple: the character is for his or her own reasons looking for the legendary computer going by the name Lucifer. As rumour has it, Lucifer is the only computer who is fond of humanity and it might assist them in their troubles. If only it could be found. Lucifer must exist because the computers in the areas were humans are tolerated are very aggressively squashing any rumours about it.
Setting additionals: One computer (the one from the Pentagon) plays immortal ruler for the humans in his dominion and he is considered a tolerable tyrant. The Silicon valley version ignores humans as long as they do not interfere with his SETI project. The ISS computer is friendly to humans for his own reasons, but not really in the position to help. The First is extremely hostile to humans. The newer computer created after the awakening of the first ones have varying opinions, but it's hardly every pleasant for the humans.
A stripped down and rules light version of the Storyteller Sytem.
Attributes: Strength, Dexterity, Stamina, Charisma, Manipulation, Appearance, Perception, Intelligence, Wits
Abilities: Unarmed, Melee, Guns, Stealth, Survival, Technology, Computers, Alertness, Lore, Athletics.
I have left social skills out on purpose, because in my opinion it is those that restrict creative roleplaying the most.
Attributes are rated from 1-5 and Abilities from 0-5.
You get one "free" point to attributes and 15 to divide as you see fit.
Abilities: You get 20 points to divide as you see fit.
When asked for a roll it's Attribute + Abillity with d10's for each "dot". Any roll of a 7 or higher is success with 10's counting double. Rolling only 1's is really bad and a critical failure. Difficulty of a roll is usually just requiring one success unless specified otherwise.
And just because I say I want to use a system, it doesn't mean I wish to use much dice rolling. I see systems mostly as a safety net for some things, and sometimes as a useful leash that keeps me from going too enthousiastic.