I have a dual channel mobo(see sig) and I want a minimum of 512mb. Should I get 1 stick of 512mb or 2 sticks of 256mb???Probably pc3500 memory. Been looking at the Buffalo 512mb pc3500, or some GEIL Golden Dragon(been tested on the board in a review so I know it works pretty good). Any other suggestions???? I like the Mushkin Black Level II, but I probably can only afford a stick of 256mb.