By the way - with an i5 you will not be able to run your RAM at 1600 MHz without OCing your CPU/chaning your BCLK. There are still good reasons to get 1600 RAM. For one, it may be cheaper than equivalent 1333 RAM. Also, while keeping it running at 1333 you might be able to tighten the timings or lower the voltage. Just wanted to make sure you knew it wouldn't run at 1600 unless you OC'd.