The one i showed has a faster processor am i not wrong? Yes it has less ram, but its enough for what you need, and can upgrade that down the track if you like. RAM and HDD's are cheap and easy to upgrade, can't really upgrade a processor in a laptop easily though. And it's not 100% about the specs. As the same parts are powering a different systems. Your going to get better performance off lower specs with a mac due to the operating system is more streamlined etc. Your paying for the hardware and software experienced combined, the less hassles you will have later, the better security, less driver issues etc. As for putting OSX on a windows computer, don't bother if you want something that is stable, which is what a DJ laptop needs to be. I agree win laptops are better for other things, they dominate the enterprise, business, and gaming sectors, you going to need a windows computer at some stage if you use it for any of those, but for music and production, mac just works better. My 2 cents, take it or leave it meg