I am not aware of any Facebook software that does work and not get you banned.
I recommend a fanpage about your business or website.
From there go ahead and befriend people by hand and invite them in.
You can start events. You can do a lot with the group, have updates show on Twitter and link back into your group.
That way you can easily build up following on your fanpage and once you got them there, they read all your updates.
For twitter use Refollow - Twitter relationship manager
Be creative with it and you can go long ways, but for automated the twitter to page way is the only one I am aware of which works well.