I'd have to pick and choose which qualities. You didn't say which ones. Apple has DESIGN qualities that you will not find in other machines like that unibody and other items. So they are out there with no one chasing them in that area.
Can you be more specific? If you mean the low cost disposable machines you see all over, how about the Panasonic Toughbooks? These have a quality to them but are still Windows machines so all the issues of malware and more are still there.
So here's the long and short of it...
I'm an IT student with a macbook. I love my macbook, there are things I will miss about it (expose), but the fact of the matter is, I need a windows machine. The things I am learning in my classes aren't linux/OS X based and my laptop is my primary machine. (I have a tower running windows 7) I have XP running in bootcamp, but I don't like the way it runs.
Anyway, to my question/dilemma. Macbooks are some of the top built machines out there, from a hardware perspective. I'm having a hard time finding a windows based machine that will match the quality that Macbooks bring. I was wondering if anyone out there has any suggestions? I'm not picky on suggestions, I'll take them all and narrow it down from that list.