I am looking to buy a Mac in a couple of weeks primarily for writing music using Apple Logic Studio 8 which will run absolutely fine on a MacBook. However, I am considering installing something like MAMP and using that as my development server too at which point I'm wondering whether I should invest in a MacBook Pro or whether I can get away with the lower spec MacBook. So I guess what I'm asking is, does having Apache, MySQL & PHP installed on a Mac use much system resources?