I'm seriously considering purchasing the new base model 13" MBP. I almost pulled the trigger a fortnight ago on a refurbed previous gen 13" but I'm glad I waited as the extra RAM and HD space makes £999 feel like (slightly) less of a rip-off! I am considering committing an extra £40 or £120 to have Apple upgrade the stock 250GB 5400rpm drive to either 320GB or 500GB. I know it's essentially giving them more money than I should, but I'd rather not have to mess with installing a larger HD myself in the future. But, is there any reason why I should avoid upgrading the stock 250GB HD to 500GB? Can the 13" MBP cope with a 500GB drive in terms of the extra heat it might generate? I'm assuming I've nothing to worry about since Apple offer it as an upgrade on their website, but I thought I'd ask anyway.