So I am going to be pulling the trigger any minute now on a refurbished MacBook for my wife. We currently have a 24" iMac at home so this machine will be secondary. My question is this: The 2.4ghz is $200 more and comes with a 250gb (vs 160 gb) hardrive and the illumindate keyboard. Honest opinions, are those two things plus the speed bump of 0.4 ghz enough to warrant the additional $200 cost. The money doesn't matter to much either way, I just don't want to be throwing it away. Thanks.