Ok so i just purchased an i7 920 not too long ago with 3x1gb DDR3 1333 memory. I was wanting to go ahead and purchase 3 more sticks. I was looking at getting 3x2gb sticks and was wondering if that would pose any problems?? Mixing 2gb sticks with 1gb sticks. I know its kind of weird to have 9gb of ram lol, but oh well.