Event Horizon was pretty cool. Love the splatter movies (dead alive, re-animator, bride of re-animator, beyond re-animator was pretty gory too but I love jeffrey coombs(sp) as dr. herbert west
Also frankenhooker for a laugh!
One that surprised me and had some startling moments was Wrong Turn with faith from buffey the vamp slayer show (and looking good too). Was kinda short but was pretty cool with the inbred jed hillbillies! Watch it till the VERY END so you don't miss the last part.
Driller Killer, Demons and Demons 2, any lucio fulchi/dario argento could be pretty good. House by the Cemetery had me going "what?" at the end, more suspense than real horror. I equate horror to suspense + blood/guts. but I also love the campy (done well) ones like Evil Dead series. Was hoping they'd do #4. I hear a remake is in the works/process for first one though.
One of the more worst ones to be aired on sci-fi recently was the Highlander with Adrian Paul. GAWD were the special effects such utter SHITE and unbelievable (as is half to 3/4's of the crap SF puts out as *original*. Even the Ray Harryhausen ones are botched by crap animation where it just LOOKS BAD compared to the scenery...they should stop with that crap and do better series. They blew it when they tossed Farscape (best damned SCi-Fi show since Babylon 5 IMHO!) and finished it with a 4 hr movie to tie up loose ends. And now a Species installment this coming saturday. You know it's going to suck. Mansquito was kinda funny though....
just my opinion.