Range Fan Cover

I'm sort of running out of music to listen too. I need a change from all the albums i currently have as i have listened to them all loads of times. I have a varied taste. Im mainly into a broad range of metal from the likes of Guns n' Roses, Metallica, Pantera, Fear Factory, Sepultura, to name just a few. Also a big fan of early 90's music in the vein of Soundgarden, Stone Temple Pilots, Screaming Trees, etc. And am a big of a prog nerd with the likes of Dream Theatre, The Mars Volta, Opeth, etc (And Tool if you count them as prog, not sure if i do).

Well anyway the above doesn't really cover the range of what i like to be honest. It would probably take all day. But it at least gives you a rough idea. The problem is with most of the suggestions i get off my friends is that i have usualy heard the music they suggest.

So basically can anyone suggest any really quality albums that i might like?