The anime series: The entire five series have already run on Japanese TV and finished in 1997. Seasons one through four have been both televised, and released on VHS/DVD in the US, although other countries may not be so lucky - here at home in Australia, we only ever got the first three seasons.
The movies: The movies have also been long-since released in Japan, and all three are also available in the US, both dubbed and subtitled.
The video games: To my knowledge, none of these are available to buy in English speaking countries, unless you're willing to play the Japanese versions (which I had to)... I'm hoping tho that they'll be brought over here, but probably not, 'cos the systems they're on (SNES, gameboy etc) aren't really popular anymore.
The manga: The manga is fairly easy to get hold of, both in japan and other countries. Just check out your local comic store - if they don't have any, then they should be able to order them in for you.
The soundtracks: None of the original japanese soundtracks have been released to the english-speaking world; however two american soundtracks were created and released for the music played throughout the english dub.