i have a 2011 mac mini and i want to know how much ram do i really need. i run such applications as microsoft word, email, frostwire, safari and a few others that ive forgotten at the moment. i want to know how much ram do i really need? i dont want to spend the $410 that apple is going to charge me for 8gigs. if so can you recomend me a website that sells cheap ram for my type of computer.