It's a great site for books, audiobooks etc. If you look through some off the book sets you can get decent paperbacks for a quid each.
In the past I have got The Ofice scripts, Father Ted Scripts, HHGTTG books etc. all for peanuts.
"When the tide runs low in the smugglers' cove
And the 'eadless 'orseman is seen above,
He drives along with his wild hallo...."