Hi everyone, I was looking into getting the new 2.0 GHz MacBook. I've used the 2.4 GHz BlackBook (old one) before, and that one seems fast enough for my needs. Does the improved memory (DDR3) and faster FSB (1066 MHz, right?) make up for the 0.4 GHz speed, or is there a serious difference in speed that I'll notice? BTW, I'm a high school junior, and I'm looking to use the new notebook for a while...i.e. at least for 3-4 years.