After a quick look I dont think they have been mentioned yet but The Dark Tower series by Stephen King offers a mix of high fantasy and sci fi. I myself am not a huge Stephen King fan but the series is completely unlike much of his other work and to me is the best fantasy I've read in an age.
Plus it's currently in development to be brought to the big screen by Universal and a Oscar winning Director/Lead (3 films - Action orientated linked by 2 TV series - Character Development). So you can be like a boss (or one of those annoying people ) who know it all before it comes out.
The Dark Tower I - The Gunslinger
The Dark Tower II - The Drawing of the Three
The Dark Tower III - The Wastelands
The Dark Tower IV - Wizard and Glass
The Dark Tower V - Wolves of the Calla
The Dark Tower VI - Song of Susannah
The Dark Tower VII - The Dark Tower
Those are the core books (with another currently being written by King which slots in as book 4.5) there is also side stories to the series written by other authors and a Marvel run comic which goes into more of the back story and other events which is still in production.
A brief overview would be basicly what King writes in his foreword, he was young - full of imagination and had just finished Tolkien's Lord of the Rings so guess form there. Please dont think this is a copy though. There is obvious inspiration from Tolkien but the whole series is really unique.
Ok after all that maybe I am a King fan...