This and IT must be the 2 main films that really got me into horror back in the early 90s. Salem's Lot is still one of my favourites... It's just got a brilliant atmosphere and is unique in being 3 hours and done as a series, plenty of time for character development. Oh and then there's Straker and Mr. Barlow!!
The sequel is great fun too, with Michael Moriarty, his brattish kid and a weird old man running round 'Salem's Lot blasting crap out of vampires and setting barns on fire