Resources:

0. A place to begin:

"Philosophy Pages" - a web-site by Garth Kemerling. You'll find links to many resources here: encyclopedias, timelines, other philosophy sites, etexts, a "generic study guide for students of philosophy" ...

I. Assigned texts:

René Descartes, Meditations on First Philosophy

John Locke, An Essay Concerning Human Understanding

Immanuel Kant, Prolegomena to Any Future Metaphysics

___________, The Critique of Pure Reason (also another edition) (and another, with A and B numbers)

W.V.O. Quine, "Two Dogmas of Empiricism"

Wilfrid Sellars, "Empiricism and the Philosophy of Mind"

II. Other primary texts:

G.E. Moore. "The Refutation of Idealism"