I run mint and 7 on my laptop.
It was originally win 8 but I cleared it off.
Oddly enough, grub won't work correctly - it won't detect my windows partition.
I can still boot to it modifying the bios though, so it isn't a total loss...(likewise, I didn't overwrite the MBR or anything - it works)
I could solve this issue if I ever used win 7 on my laptop but I use it for school and I do almost all my work in vim so I just stay on the linux side

I would go with a cheap laptop if its for school though.....just IMO. More chances for it to be stolen/damaged etc....
e: Not to mention, you don't need huge specs for typical school projects.
This post was edited by Eep on Nov 23 2013 05:06pm