Sorry but another graphics card question. I'm having great diffulculty in deciding which one to have. I dont use my machine for gaming, but on the otherhand i do a lot of video editing, dvd authoring etc. I'm getting a PCI-E motherboard, which i assume i need a PCI-E gfx card. Does memory type matter? and do i really need a top-of-the-range card for what i want 2 use it for? Any feedback is greatly appreciated. Thanking you in advance.