Ranger's Apprentice by John Flanagan and published by Random
 House Australia.

Pendragon series by DJ MacHale

The Bear Kingdom series by Michael Coleman

Children of the Lamp series by PB Kerr.
 

The Cherub Series by Robert Muchamore
         published by Hodder Children's Books  

The Lord of the Rings - Tolkein
    The Hobbit
    Dark is Rising Series (Susan Cooper)
    Eragon (Christopher Paolini)
    The Blue Sword, Beauty, and The Hero and the Crown (Robin McKinley)
    The Wizard of Earthsea
    The Lost Years of Merlin Series (T A Barron)
    (Lloyd Alexander)
    Firegold (D. Calhoun)
    Neverwhere by Neil Gaiman
    Ender's Game by Orson Scott Card
    Earth Sea trilogy by Ursela LeQuin
    Golden Compass trilogy by Phillip Pullman
    Shadowmancer by GP Taylor
    Robert Jordan's Wheel of Time Series
    David Eddings' Books
    Redwall Series by Brian Jacques
     The Ropemaker by Peter Dickinson
    Diane Wynne Jones' The Lives of Christopher Chant Series
    The Amulet of Samarikin by  Jonathan Stroud - The Baetemous (sp?)
trilogy
    Diane Duane's Young Wizard Series
    Eoin Colfer's Artemous Fowl Series
    Tamora Pierce novels
    Overlander series by Suzanne Collins
    Inkheart by Cornelia Funke

http://www.carnegielibrary.org/kids/booknook/topicbooklists/harrypotter.html