DeLillo is great; Underworld is one of my favorite books. Helps if you're American, probably.
Not sure if gamelan will love these as much as I did, but:
Jeffrey Eugenides - Middlesex
Saul Bellow - Augie March (or Henderson the Rain King, also great and a quicker read)
John Barth - Tidewater Tales (my favorite, though Sot Weed Factor and End of the Road are great, as well)
If you like the younger writer, memoir-ish stuff, then:
Dave Eggers - A Heartbreaking Work of Staggering Genius (sometimes groaningly postmodern, btu very good)
David Sedaris - any book, hilarious
Jonathan Safran Foer - Everything is Illuminated
Just read this--very very funny. Waugh's Decline and Fall is similarly funny, about British secondary schools rather than higher ed.
You have plenty of good recs already; enjoy!