Here's the deal. The PC I am typing on right now has XP Home on it. It's upgraded to SP2 with all the Windows Updates. I have an XP Pro w/ SP2 install CD with a key. I'd like to upgrade this PC to XP Pro, so I can setup Remote Desktop and access it from my laptop PC. Is there an easy way to do this? Or, do I have to actually have one of those XP Pro "upgrade" CD's that seems to cost $100-$150 everywhere? I've poked around via Goggle, and haven't found any definitive answers.