I've got a bunch of 40K rulebooks to sell; they're all current edition and are in good condition. Prices:
Chaos Daemons (40K), Codex Eldar, Codex Orks, Codex Tyranids (Current ed.), Warhammer 40K Apocalypse Reload book (somewhat battered but still perfectly usuable, see pic below): £7 each
Codex Armageddon: £5
40K: Apocalypse (first Apoc. book): £12
Paypal's fine, if you want to pay with something else that's cool throw me an email.
(link to pics of the books, entirely work safe obviously)
All prices are without shipping which will vary from book to book (and post office to post office in all likelihood) but it won't exceed £4 for the largest books.
So if you're interested post or drop me a line at email@example.com