I just got back from Borders.
S. Kierkegaard, Either/Or (Penguin Classics version, lightly abridged)
S. Kierkegaard, The Concept of Anxiety (Princeton UP version)
R. Olson, An Introduction to Existentialism
R. Marino, ed. Basic Writings of Existentialism
Basic Writings includes:
S. Kierkegaard, Fear and Trembling, Problema I and II
S. Kierkegaard, The Sickness Unto Death
F. Nietzsche, The Genealogy of Morals, First and Second Essays
F. Dostoevsky, Notes from Underground, Part I
F. Dostoevsky, The Brothers Karamazov, The Grand Inquisitor
M. de Unamuno y Jugo, Saint Miguel Bueno, Martyr
M. Heidegger, Being and Time, Selections
J. Sartre, Existentialism
J. Sartre, Being and Nothingness, Self-Negation and The Encounter with the Other
S. de Beauvoir, The Ethics of Ambiguity, Ambiguity
A. Camus, The Myth of Sisyphus
R. Ellison, The Invisible Man, Introduction