I second the above mention of "Descartes' Error" by Antonio Damasio, although the fundamental argument has been more succinctly stated in other places.
"Mental Events" by Donald Davidson is an excellent essay, arguing for metaphysical reduction of the mind, by way of explanatory non-reduction (it is genius.)
"What is it like to be a bat?" by Thomas Nagel is an absolutely foundational essay on the explanatory gap.
"On Confusion About a Function of Consciousness" by Ned Block is also prerequisite reading for most modern philosophy of mind.
Although you were very explicit about this, Dennett has some excellent literature on constructing an objective phenomenology, that is very interesting.
Finally, Richard Moran has an entire novel out called "Authority and Estrangement," that deals with the asymmetry of self knowledge and knowledge of other types, and "privileged access" to some parts of our minds. Self-knowledge actually has some import in terms of whether or not the mind can be reduced.
I can recommend other essays. Are you interested at all in functionalism?