I will be getting a Macbook next weekend, and I've been looking on a few websites as to what version of Windows to install using Boot Camp. I will only be using the windows portion to play The Sims 2. I'd prefer to have XP over Vista since I've had more experience with it. But I'm not sure which version will be right for me. 32 vs. 64 bit? OEM? Thanks in advance for the help!