In a way, you can find a reference to a "Collective Consciousness" in Asimov's "Foundation's Edge" and while there is a character that is (somewhat) removed from it, she is not the main character in the book. Also it is inferred that the Mule may have also been a part of Gaia (the collective).
Why ANYBODY would want to wife swap her just shows me that all pols must be crazy
Another Borg/Star Trek thing is Hugh, a Borg they capture and give an individuality to. Like 3 episodes, I think. The first where he goes back to the Borg but as an individual, and the second two where he escapes with a shipload he's infected with individualty and then they run into Lore, who convinces them he is God.