Ya, for general purpose like protecting the lenses, get a UV will do.. i usually get Hoya Pro or the other Jap's brand, can't remember but start with "M"...
Advise to get a good UV (a bit more expensive, around 200++ to 300++ depend on the diameter of your lens) to avoid step down or some gives yellowish "effect"... what you can do is take a white A4 paper and put the filter on top of the white paper...check if it's crystal clear, this way, you can spot the yellowish easier...