There are very few vampire movies out there which I consider very good. There are only a couple I would consider great. One is the original Salem's Lot which originally aired as a mini-series back in the late 70s. The other great vampire movie is Stakeland.
Stakeland came out in 2010 and focuses on a small group of survivors of a vampire apocalypse as they try to make it to a place called New Eden. The excellent script was co-written by director Jim Mickle and star Nick Damici who worked together previously on another horror flick called Mulberry Street. I could go on-and-on about how great this movie is but I don't want to spoil anything for you. You owe it to yourself to see Stakeland.