I recently did an inventory of the Tolkien works I've collected in just the past few years:
Audio Book CD
The Hobbit - unabridged, narrated by Rob Inglis
The Lord of The Rings - unabridged, narrated by Rob Inglis
Music CD
The Fellowship of The Ring Soundtrack
The Two Towers Soundtrack
The Return of The King Soundtrack
At Dawn in Rivendell by the Tolkien Ensemble and Christopher Lee
Leaving Rivendell by the Tolkien Ensemble and Christopher Lee
The Lord of The Rings: Complete Songs and Poems by the Tolkien Ensemble and Christopher Lee
Lord of The Rings Symphony - Johan De Meij
The Lord of The Rings - Music Inspired By - David Arkenstone/The Elbereth Orchestra
DVD
The Fellowship of the Ring - Theatrical Version
The Two Towers - Theatrical Version
The Return of The King - Theatrical Version
The Fellowship of the Ring - Extended Edition
The Two Towers - Extended Edition
The Return of The King - Extended Edition
The Fellowship of the Ring - Book Re-edited Version
The Two Towers - Book Re-edited Version
The Return of The King - Book Re-edited Version
Hardback Books
The Hobbit - Collector's Edition
Unfinished Tales
The Children of Hśrin
The Lord of the Rings - Single Volume Collector's Edition
Paperback Books
The Silmarillion
The Hobbit
The Fellowship of The Ring - Illustrated cover by Alan Lee
The Two Towers - Illustrated cover by Alan Lee
The Return of The King - Illustrated cover by Alan Lee
The Fellowship of The Ring - Movie Cover
The Two Towers - Movie Cover
The Return of The King - Movie Cover
Journeys of Frodo - Atlas of Middle Earth by Barbara Strachey