I'd definatley go with 'Spookies/Blade In The Dark' Blade's not that great but Spookies is a really enjoyable film, definatley worth adding to the collection. 'House Of Clocks' is another great one and for the other i'd go with 'Death Trap'. That's what i'd recommend anyway mate, hope it helps
Might have to check out that website myself. I've been after 'Pranks/ God Told Me To' for ages, only titles i need to complete my screamtime collection.