Salvatore is one of those authors that I've been aware of for a long time. His Damiano trilogy got good reviews. His Drizzt novels were popular. I picked up the Damiano trilogy in paperback and never got around to reading any of it.
He's got enough of a rep that I'm willing to throw him into my backlog. I'm more metal than emo, though, so he and I might not get along that well.
Speaking of headbanging. I'm pretty sure that Fredric Brown was a metal maven. Amazon.com has
Martians, Go Home for $3.99 and
What Mad Universe for $2.99.
In fact, they have quite a few other Gateway (owned by Hachette) editions of some good books at reasonable prices.
Gateway publisher search.
Norman Spinrad -
The Iron Dream for $2.99. Definately metal.
Norman had a self-published edition of the book for sale on Amazon.com a while back and it was badly OCR mangled. A quick glance through this sample looked better than Norman's edition.