I have a few books to hunt for second hand over the summer... and that's only 3 of my courses.

Aristophanes. Four Plays. Tr. W. Arrowsmith, R. Lattimore, D. Parker.
Aristotle. The Basic Works of Aristotle. Ed. Richard McKeon.
Augustine. Confessions. Trans. R.S. Pine-Coffin.
Boethius. Consolation of Philosophy.
Dante. The Divine Comedy. 3 vols. Trans. Dorothy Sayers.
Plato. Complete Works. Ed. John M. Cooper.
Plotinus. Ennead V. Trans. A.H. Armstrong.
Thomas Aquinas. Selected Writings. Ed. and trans. Ralph McInerny.
Chaucer, The Canterbury Tales, ed. Cawley
Edmund Spenser's Poetry, ed. MacLean and Prescott
John Donne, Selected Poetry, ed. John Carey
John Milton, Paradise Lost and Paradise Regained ed. Christopher Ricks
Poetry and Prose of Alexander Pope ed. Aubrey Williams
Johnathan Swift, Gulliver's Travels and Other Writings ed. Louis Landa
20th Century Poetry and Poetics, ed. Gary Geddes
Joseph Conrad, Heart of Darnkess & Selections from the Congo Diary, ed. Caryl Phillips
Virginia Woolf, Mrs Dalloway
F. Scott Fitzgerald, The Great Gatsby
Zora Neale Hurston, Their Eyes Were Watching God
Lorraine Hansberry, A Raisin in the Sun
Selected stories from Philip Roth, Goodbye Columbus
Don DeLillo, White Noise
W.G. Sebald, Austerlitz
Brian Friel, Translations
Zadie Smith, White Teeth
Yann Martel, The Life of Pi