Iv said this before but if you enjoy OG you really should check out Colour Haze. They have a wealth of great albums, all of which are a bit different from the next. If your into long instrumental jams that go from ambient rock to near heavy metal and everything inbetween, then you will thank me. If not, well they are probably not your cup of tea.
http://en.wikipedia.org/wiki/Colour_Haze
