hi, thanks for the replies. i've decided to go with home premium but i have another question. i only plan to use windows 7 on one pc. i'm aware of the different types of versions for all three editions of windows. oem, upgrade and full. if i buy the oem and my computer gets a virus or the hdd gets damaged etc. will i still be able to use the oem version if i reinstall windows to the same machine? or will i need to buy windows 7 again? i don't really want to pay the cost for the full version as i don't intend to transfer the licence to another machine and i'd rather save $80 and spend it on something else.