From Mark Frauenfelder at boingboing.net: a very cool post on designer Jim Tierney's designs for Jules Verne book covers. Here's the link (and pix below):
Jim Tierney Book Covers
I love the strong contrast in colors matched with the whimsical design. Perfect for Verne's books. Unfortunately, as the blog post states they are design projects and not commercially available. You can see more of his work at his main website here:
Jim Tierney Website
I also follow a wonderful book blog on cover design called:
The Caustic Cover Critic
From this blog comes an interesting Edwardian take on HP Lovecraft designed by Travis Louie.