I bought the Geforce cards all locally in the Netherlands and use the drivers from Nvidia without problems.
The user interface part ofcourse is in english.
Most card manufacturers have localised versions and might be uptodate too with localised versions.
The version I use is 650, Creative also supplies this version. There are more recent builds (7xx) but they are beta.
So look first at the card manufactures site (go for known names such as Asus and Creative and Guillemot)