Re: win8? yes or no.
I have Windows 8 preview on my system as a dual-boot, but you know what? I think it expired in February. I haven't booted Windows for months.
I only had it to give it a try. If I wanted to have a functional dual-boot, I'd install Vista or 7. I use Windows 7 at work (I don't have a choice of OS there) and it's... usable.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.