Never heard his name mentioned here, but Cormac McCarthy seems like the sort of modern writer that might be appreciated on these forums. Stylistically similar to Faulkner, conceptually more influenced by Conrad and Melville, but probably the best "semi-mainstream" American writer currently active. Anyone else read his books? The Road and No Country For Old Men get the most press, but Blood Meridian is definitely his masterpiece.
Are there any other suggestions for good modern writers I'm missing out on? I've already read and enjoyed Houellebecq, but aside from that I can't think of too much. Thomas Ligotti was impressive but maybe that's more my own personal preference than anything else.