I just read Ilium by Dan Simmons.

http://www.amazon.com/Ilium-Simmons-Dan/dp/0380978938

It's like the Iliad meets science-fiction. If you like Greek Mythology, you'd probably like this book. If you like grand scifi, or enjoyed Hyperion, you'll like this book.

I just picked up the sequel, Olympos, can't wait to read it.