The National Library of Australia is currently showing a "free admission" exhibition in Canberra called "Treasures from the world's great libraries". It will be open until Sunday, 24 February, 2002 and includes the original design for the book cover of The Hobbit (or There and Back Again).
Other neat exhibition items include the manuscript for "Waltzing Matilda" by Banjo Paterson and the manuscript for Mozart's Requiem (essentially his own death mass).
With the current bad weather in and around Canberra it might be fun to get across to the NLA and check this exhibition out!
More information at www.nla.gov.au