My local Co-Op has brought in a few cheap halloween discs. Most of them are the usual suspects that you would expect to turn up, but I did manage to get Hammer's The Damned (1963) complete with booklet for the princely sum of £2.99. I haven't watched it yet, but anything with Olly Reed has got to be worth a watch.
Edit: I should point out that this is the uncut 95 minute version, so get one before they are all gone!