The Cambridge set texts for the 2010 and 2011 FCE exam are:
Wilkie Collins: The Woman in White (Black Cat or any edition)
Michael Chrichton: Jurassic Park (Macmillan or any edition)
Both recommended texts are graded readers. You may read one or both. These books are not discussed in the oral exam at all. They are the basis to answer a choice of optional writing tasks in Part 2 of the Writing Paper.
The Woman in White Fiona Joseph has a great ten-minute podcast to introduce you to the book The Woman in White. Her tips are spot on. You should be very well prepared to choose one of the set text writing options, which can be an essay, an article or a letter.
The range of set books recommended by Cambridge for the FCE exam has been full of classic authors. Most of the books are read in their unabridged editon. If you are one of those students who loves reading and needs advice with titles to quench your reading thirst, here is a good reading list created by OM. They also provide free downloads with information about the authors as well as some of their most famous books.
One final thought...
Apart from the recommended abridged readers, I would advise you to include some original work in your personal reading list. But most importantly, choose books you like! If you find a novel or story never ending, perhaps it's time to go and discover other titles that confirm reading can be a great pleasure.