I have Windows 7 also but am sure my next computer will be Windows 8 since I hear they won't be making 7 anymore.
My daughter just got a new computer that's an 8. Anyway, I have only used it a few times. It's got a totally different look with the desktop looking like an I-Phone with lots of apps. It'll take a bit to get use to but my daughter is happy with it.
TIS