Tetsuo: Ironman is the ONLY film I have ever switched off because I just couldn't take it any more.
Of the modern horrors, maybe Saw, and Saw alone, none of the sequels, should have been included in the programme.
As mentioned earlier, maybe Dog Soldiers, Deathwatch and 28 Days Later. Having never seen the original, the US version of The Ring was pretty scary. Especially as I watched it alone at midnight, and due to a flaky modem on our PC at around 2:00am the blooming phone rang. I had to be peeled off the ceiling.