Do I need to buy the full Windows XP home edition or can I buy the upgrade edition for half the price? I assume I'll need the full edition for $200. Is windows xp going to run fine on bootcamp? What problems should I expect since I'm using it on Mac? Do I need the additional program for $80 that allows me to use both windows and os X at the same time? How are the windows based games on bootcamp? I'm going to buy the 3.06ghz 24" and upgrade it to 4gb with memory from macsales.com. Will this setup run games like Call of Duty 4 and Supreme Commander and the like fine? Will it be too choppy to play? What difference would I notice between the Aspyr port of Call of Duty 4 and the original Windows XP version? Will I be fine with XP or will I need Vista for some of the newer games? Thank you for your time answering me. I hope I was specific enough.