If you enjoyed this..
You may well enjoy a favourite anime series of mine, named Big O. You can access information on it here.
http://www.imdb.com/title/tt0280240/
The series follows a similar route, and is surprisngly steeped in philosophy and the ideas of humans and machines sharing emotions. Very similar to the principles of the Matrix Trilogy, actually. Be sure to take a look if you're interested. Though it's worth noting that the colour scheme is far more vibrant in Big O, and the series focusses around giant robots, which may put a few people off.