[ctc7191]

To the FSB issue:
Actually the memory speed you choose will ideally be half the speed of your FSB if you intend to use DDR. The reason is the DDR stands for Double Data Rate. So when you pair 2 memory sticks together, the rate transferred is double. In this example, the FSB is 1066. So two 533 sticks are ideal in this case. Using two 1066 sticks will work, but the rate on them can't be doubled since the FSB is only 1066. So it's not worth the extra cash. It is important to mention that the memory sticks have to be paired correctly with the memory slots on the motherboard. This is why alot of motherboards have the memory slots colored differently.

Chris