ok so i will probably be getting an ssd in my new build and i would like to know how much memory will win7,ms office and a couple of programs that i will use every day take up? i am thinking of getting a 90gb or a 120gb one,but although there isn't a big difference in these two the 120gb one goes out of my budget so i'd have to extend it somehow or delay buying a pc for some time the difference in price is about 20 bucks though,not so much...