I'm working on writing a campaign in the event I actually ever get the chance to run an SR game. Was looking for some input; just spit-balling right now.
The basic focus of the campaign is about the players going up against a cyber cult. The sort that thinks "Flesh is weak, become one with the machine," that sort of deal. The nature of this cult means that they require a lot of money; cyberware isn't cheap, after all. To this end, I figured either the cult was founded by a corp, or co opted very early on. It was intended as a way of providing the corp with plausibly-deniable muscle. A conflict between the cult leaders and the corporate backers is likely, I think.
Other idea: The corp is a security corp, and is intending to use the cyber cult as a means to exert greater control; see the Agency in Crackdown.
The cult would recruit primarily from people who've already been cybered, and are maladjusted. Other potential recruits include BTL addicts. Could use some other ideas.