John Richetti is a much-respected scholar of 18th-century English literature, but here he makes a strong case for moonlighting as a voice-over man, registering as something in that much-neglected space between Rod Serling and a used-Jaguar salesman. On PennSound, an entire page is devoted to his readings of various works by Alexander Pope, Jonathan Swift, and John Dryden; fittingly, it's listed in the PennSound Classics section, which is a terrific place to begin one's trek through the site's often intimidating topography. Everything here is wonderful: Richetti reads each work in a charmingly insouciant tone, one that belies the considerate thought he has given each recitation, which are never less than great fun, and are often quite relevatory.
I recommend listening to everything on this page, but, in the interest of highlighting a place to begin, I don't think one could go wrong with Dryden's Mac Flecknoe or Swift's Verses on the Death of Dr. Swift, perhaps with Pope's On a Lady who P—st at the Tragedy of Cato as a chaser.