ive try seaching for more darker Classical music, the only stuff ive come across is the like of movies soundtracks. any ideas on composers that like to indulge in the sinister side?
I don't think this is a smart way to approach classical music. The point of classical is not to make wallpaper for a specific mood, but to wrap moods into a narrative so you can experience them all in context. It's all about context with classical; rock is about The Moment or The Riff, but has no subtlety.
So... pick any great piece, and there will be dark moments, and lighter ones, and a million shades between.
Specifically "dark" classical music will all be 20th century trash.
This point, that of "death metal black metal", and those of others reflect the same view. Classical music, especially that of antiquity, represents the dramatic tides of life itself as a journey, there is darkness and light as you walk on in your consciousness, A piece of classical music is a journey through which one finds the complex, indescribable moods and feelings of life. Many works, such as the work of Chopin, can be happy and sad - light and dark - at the same time.
Mainstream society, at least that of mainstream media has evolved into a niche of advertising and appealing to the largest possible audience. In the process, all that deemed too radical, too far from one's Ipod, lattes and top40s is removed and we are given exactly what we want in a "push button - receive feed" sort of way. To ask for "dark" classical is a lot like skipping to "the best part" of some pop song. It's instant gratification. And unfortunately, no one says no to that anymore. Ultimately, it is unfulfilling, and puts you on a one way course to a mid-life crisis, etc.
Perhaps your intentions are different, there are indeed classical composers whom's subject matter is of a darker nature. But with any classical artist worth listening to, you'll find that they are much more than a pretty face. There's a lifetime of depth within. The same is true with metal, in fact - good metal, anyhow. To assert that point is one of the ambitions of ANUS I may boldly speak of with my laughably low post count.
The point is, there's plenty of darkness in classical music and you may not even know that you've heard it in some of your favourite pieces. If I am to oblige you as Conservationalist humoursly did a few posts later, then I would reccomend investigating composers associated with mental illness. A google search of "classical composers with schizophrenia" will turn up some good results of artists who battled the affliction and composed dissonant and chaotic music; an illustration of this struggle, perhaps.
Moreover, keep listening to classical, metal and other of this music in reference to what I described above, and with time you may discover a whole new world full of the uncertain, dramatic beauty that is life.