There are a couple of different auction houses around the world that have some interesting Tolkien materials available over the next month or so. A short description and link to the auction website is listed here for each - happy hunting!

The Fellowship of the Ring. George Allen & Unwin: London, 1960. 423 pages. Eighth impression. (and:) The Two Towers. George Allen & Unwin: London, 1959. 352 pages. Sixth impression. (and:) The Return of the King. George Allen & Unwin: London, 1959. 416 pages. Fifth impression. Folding map tipped into the rear of each volume. Three octavo volumes. Red cloth. Shelf wear to bottom edges of boards. Some dampstaining to boards and dust jackets. Some soiling to dust jackets. Musty. Overall, in very good condition. Heritage Auction Galleries
March 6-7, 2009
USD 1,000.00 - 2,000.00

http://historical.ha.com/common/view_ ... Sale_No=6020&Lot_No=37051
The Hobbit. First Impression. Octavo, with half-title, frontispiece and full-page illustrations by the author, terminal leaf of publisher's advertisements, map endpapers by the author printed in black and red, old shallow diagonal crease to free front endpaper and adjacent leaves, green top edge slightly faded, other edges mildly tanned, original green cloth decorated and lettered in blue, bottom fore-corners slightly bumped, with rare dustwrapper designed by the author, price-clipped, some toning, neat old paper repairs to the extremities and to a portion of the bottom right front panel, some colour retouched or supplied, small piece torn from the blank bottom corner of the back flap. First edition, first issue with "Dodgeson" corrected in ink manuscript on the back flap of the dustwrapper.Australian Book Auctions
March 23-24, 2009
AUD 12,000.00 - 15,000.00 (USD 7,731.60 - 9,664.50)

http://www.australianbookauctions.com/sale_info.html
The Fellowship of the Ring. 1954. First edition with loosely inserted review slip. Octavo, folding map, endpapers offset, small bookseller's label on front pastedown, extremities little bumped, original cloth in price-clipped dustwrapper, slightly darkened, slightly edge-worn.Australian Book Auctions
March 23-24, 2009
AUD 3,000.00 - 5,000.00 (USD 1,932.90 - 3,221.50)

http://www.australianbookauctions.com/sale_info.html
The Return of the King. 1955. First edition. Octavo, folding map, original cloth, slight wear only.Australian Book Auctions
March 23-24, 2009
AUD 500.00 - 800.00 (USD 322.15 - 515.44)

http://www.australianbookauctions.com/sale_info.html
Il Signori degli Anelli, first single-volume Italian edition, INSCRIBED BY THE AUTHOR ("Aug. 1971/C. Talbot D'Alessandro/from/J.R.R. Tolkien") on front free endpaper, and with a loosely inserted TYPED LETTER SIGNED, asking D'Alessandro if he would like a copy of the Italian edition, the letter dated 17th July, 1971, but with an apologetic autograph postscript "please forgive my delay in posting this!", with envelope (name and address cut out), Milan, Rusconi, 1970; Farmer Giles of Ham, third impression, INSCRIBED BY THE AUTHOR on half-title ("signed for Camillo/J.R.R. Tolkien"), front free endpaper with C. Talbot D'Alessandro's signature in ink and an illustrated book token pasted-in, 1961; The Adventures of Tom Bombadil, second impression, INSCRIBED BY THE AUTHOR ("signed for... J.R.R. Tolkien", with a space left for the recipient's signature, duly filled in by D'Alessandro), illustrated book token pasted-in below inscription on front free endapaper, 1962, the last 2 with illustrations by Pauline Baynes, George Allen and Unwin, 8vo (3). D'Alessandro was an Oxford professor and authority on Tolkien, as well as corrrespondent with C.S. Lewis (see entry under the latter above). Letters to him are held at the Taylor Institution Library.Bonhams
March 24, 2009
GBP 2,000.00 - 3,000.00 (USD 2,989.40 - 4,484.10)

http://www.bonhams.com/cgi-bin/public ... No=16761&iSaleSectionNo=1
Smith of Wootton Major. FIRST EDITION, SIGNED BY THE AUTHOR, illustrations by Pauline Baynes, publisher's pictorial boards, rubbed, 8vo, George Allen & Unwin, 1967. This copy was signed by Tolkien for his friend and neighbour, Robert Castle. Castle was the first paid employee of Oxfam, and even coined the term 'Oxfam' from the somewhat cumbersome Oxford Committee for Famine Relief. He became friends with members of 'The Inklings', such as Tolkien and C.S. Lewis, through their generous donations to the growing charity.Bonhams
March 24, 2009
GBP 1,000.00 - 2,000.00 (USD 1,494.70 - 2,989.40)

http://www.bonhams.com/cgi-bin/public ... No=16761&iSaleSectionNo=1