Robert Fitzgerald (or Allan
Mandelbaum, or C. Day Lewis), translator, Virgil's Aeneid, Vintage
0679729526 ($10)
JoAnn Shelton, As the Romans Did,
2nd ed., Oxford UP 1997 019508974X ($41.95)
Selincourt,
translator, Livy: Early History of Rome, Penguin 0140441042 ($14)
Michael Grant, translator, Cicero:
Selected Works, Penguin 0140440992 ($14)
Lucretius, On the Nature of Things,
Hackett Publishing 0-87220-587-8 ($12.95)
(All of those are in the Bookstore, or should be.)
Additional reading as indicated: Latin texts are available online at the Latin Library, and bilingual Latin/English texts linked to grammar help and dictionary and sometimes online commentary are available at Perseus.