Restore iPhone backup from different computer?

I should be getting the iPhone 5 today at work. My current iPhone is on Mac and at work we used windows. We do not have Wi-Fi at work but I would like to restore and start to use the iPhone 5. What I was thinking of doing is backing my iPhone in iTunes and putting on a portable drive and restore it on an windows based iTunes. Will this work? I don't want to convert the iPhone to windows. I'm really just trying to figure a way to start using the new iPhone.

Hard to understand " convert the iPhone to Windows". Seems iPhone can be changed to Windows OS?