Not a textbook, but required reading is below:
The Aeneid; a new translation by David West, Virgil, Penguin, 1990 (I recommend reading this before the semester begins)
Livy From the Foundation of the City 1.1 (It is generally accepted
) to 1.15 (he was taken up into the sky) and 1.48.8-60
= The Early History of Rome transl. Aubrey de Sélincourt (Harmonsdworth, 1960): pp. 18-35, 72-85
Slavery extracts: Cato the Elder On Agriculture 2, 56-9; Tacitus Annals 14.42-5, Diodorus Siculus The History of the World fragments of Book 34:2 = Jo-Ann Shelton As the Romans Did (Oxford: 1998)
Richard Saller Slavery and the Roman Family in M.I. Finley (ed.) Classical Slavery (London, 1987): 65-87.
Plautus Pseudolus = The Pot of Gold and Other Plays (Harmondsworth, 1965) transl. E.F Watling): pp.216-268.
Suetonius The Deified Julius Caesar = Lives of the Caesars (Oxford World Classics, 2000) transl Catharine Edwards: pp. 3-42.
Caesar The Gallic War pp. xlvii-xlix, pp. 1-19 end of 1st paragraph other states tributary. pp. 95-96 [book 5. paragraphs 12-14], pp. 124-133 [6.11-28], pp. 181-194 [7.69-90]
Cicero In Defence of Marcus Caelius Rufus = Selected Political Speeches (Harmondsworth, 1969) transl. Michael Grant. pp.165-214.
Catullus Poems I-III, V, VII, XI, XVI, XLIX, LI, LVII, LXXII, LXXXIII, LXXXV: The Poems of Catullus: a new translation by Guy Lee (Oxford World Classics, 1991).
Propertius The Poems (Oxford, 1994) transl. Guy Lee: Book 1: Poem 1 (pp.3-4), Poem 4 (pp.6-7), Poem 7 (p.10).
Ovid Loves Book 1 Poems 1, 2, 3, 5, 6, 9 and 15.
Ovid Art of Love Book 1 = The Erotic Poems (Harmondsworth, 1982) transl Peter Green: pp. 166-190.
Petronius Dinner with Trimalchio = Petronius The Satyricon, Seneca The Apocolocyntosis (Harmondsworth, 1986 revised edition) transl J.P. Sullivan: pp. 51-91.