I myself thought The Grudge was a good remake But Takashi Shimizu was at the helm so thats not surprising.....but it all went to crap from there.
As stated in my top ten forror films from 2009, The Echo was a great remake of...The Echo (sometimes titled Sigaw). lol
While more thriller, The Vanishing is a pretty good remake of a dutch film.
I admit, I was skeptical about The Uninvited just becuase I like A Tale of Two Sisters so much. The Uninvited was no where near on that high of a level, but it was decent despite the changes to the story.
And one last one but this is a bit of a curveball as it is a Korean remake of a japanese movie: The Black House. The Japanese version came out in the late 90's and the korean version in the late 00's, the Korean version was a lot better and a pretty solid film. Althought, the Japanese version was adapted from a book, so both are basically different adaptations of the same source material. lol