It's as good as you remember, I promise!
Used to own it on VHS but never re-bought on DVD. It's one of those where I'd be worried about seeing it again and potentially tarnishing the memory...
Going to have to do that now...
Here's something freaky about Event Horizon - go watch the bit where Sam Neill is hallucinating in the stasis pod on the outward journey. He wanders around the ship and sits down on the bridge, and his freaky wet dead wife touches him on the shoulder.
Look at the screen his wife is reflected in when she stands behind him. There are eyes on the screen watching him.