Laptop Product Informaton/ Description?

I want to do school work, media, youtube, movies, webcam and maybe some kids games on the lap (kid learning game, nothing crazy) but farmville and FB (my son, lol). I want a HP laptop to accommodate all of this but I want to know what is best for all this in each category and why. Processor and why? Memory and why? Hard Drive and why? Intel or AMD and why? GB and why? Read Speed and why? Data Links and why? GHz and why? MB and why? MHz and why? Write speed and why? What is Brightview LED display? What is Window 7 Home Premium? Dual Core and why? Is a HP Pavillion dv6 or 7 good, great or no? Please help me?