If you can't buy from an online source I'd suggest you find a way to be able to 'cuz Windows is like a commodity these days. If it's $89-$91 online retail then you're probably gonna find that price anywhere. And unlike past versions it won't do anybody any good to give you a bootleg copy of XP 'cuz it's got big brother built-in now.
Bill Gates is watching you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!