Here are some articles I've come across that might be useful. I can e-mail PDFs if you are interested (I don't think its legal to post them here).
Badmington, Neil. Theorizing Posthumanism. Cultural Critique, No. 53, pp. 10-27. http://www.jstor.org/stable/1354622
Brasher, Brenda. Thoughts on the Status of the Cyborg: On Technological Socialization and Its Link to the Religious Function of Popular Culture. Journal of the American Academy of Religion, Vol. 64, No. 4, pp. 809-830. http://www.jstor.org/stable/1465623
Galvan, Jill. Entering the Posthuman Collective in Philip K. Dick's "Do Androids Dream of Electric Sheep?" Science Fiction Studies, Vol. 24, No. 3, pp. 413-429. http://www.jstor.org/stable/4240644
Gillis, Ryan. Dick on the human: from wubs to bounty hunters to bishops. Extrapolation, 39?3 p. 264-271.
Hayles, NK. Computing the Human. Theory Culture & Society, 22:1
McNamara, Kevin. "Blade Runner's" Post-Individual Worldspace. Contemporary Literature, Vol. 38, No. 3. pp. 422-446. http://www.jstor.org/stable/1208974
Slade, Joseph. Romanticizing Cybernetics in Ridley Scott's Blade Runner. Cybernetics.