I just thought you guys might like to check out this website
http://www.cinemaoverdrive.net/merch/ . I bought a 'Demons' poster from them off ebay and was ecstatic with the quality of the work when it arrived. It seems to be a group horror/exploitation/cult movie fans who put on shows locally and use this artwork to promote and also subsidise their business.
Regardless, the price of the poster (it's really a signed ltd edition original piece of art) was very affordable even with overseas shipping. I'm on their mailing list and I'm definitely going to be making further purchases.
Let me know what you think!