Is xp Coem version will work?

I am willing to buy a Windows Xp Home Edition Coem.
Coem is not Oem, you can buy it in some stores.
I am wondering if it is legal to buy a Coem version and use it by Boot Camp,I am also wondering if Coem version will work.



I am also considering Windows Vista Home Premium,which one will be better.
I know Microsoft is doing Windows 7 which is based on Vista and might have Vista Sp2 next year, do you think buying a vista is worth than buying a xp?
Thank you!~~~(<_>)

I'm not 100% sure what you mean by COEM, but if that means a version of windows that's meant to be bundled with a new computer then yes it should still work. And it's legal as far as I know, but you only get to register it once.

I'm using XP Pro on my macbook and it works great, even better than it did on my PC. I decided not to go with Vista, mainly because everything I read about it indicates it's a resource hog and all the windows programs I need to run work fine under XP.

Thanx,indeed,I am from China, we have a version called coem which is similar with oem,like a oem retail version and does not bundled with computer,but it is legal to use in any kind of computer if you just register once!