Hmmm so how much do you want to spend... How about EUR 9950 ($11,878 U.S.)
In English:
BOOK OF KELLS. Ms 58 (A.I.6.) Trinity college, Dublin. Luzern, facsimile publishing house Luzern, 1990. 680 sides. 330 x 250mm. 678 sides colored decorated with miniatures, initials and numerous symbols. Emergence: around 800 in Ireland, wahrschenlich on the island Iona. Facsimile + comment. Leather on genuine federations in silver-fitted schmuckkassette. Limited edition: 1480 copies, of it 740 copies for the anglo-saxon area. New copy. Edition number: 1087. [ SW: Book nature, facsimile, Irish book painting, book painting, Celt, religion, Evangeliar -
http://www.zvab.com/SESSz15561880621112 ... engine=add
OK maybe that's a little extreme, but it would be nice.
The other two books that Saverio mentioned are both very nice if your looking for pictures. I have noticed that the colors differ from book to book.
Another book to look for is the Book of Durrow (if your looking for Celtic stuff). It's a little bit earlier than the book of Kells, but it has the same types of knotwork. Here's an example:
http://www.mcah.columbia.edu/insular/wo ... ow_fr.html
Best of Luck with your searching,
Sigeric