1. Power and heat.
2. Read the manual provided. But I don't think it works.
3. If they don't say, it means don't have. Either that, it's not
documented, but chances of it not being documented is rare.
4. Your school won't use Vista, unless they are treating you guys
and guinea pigs and want to stress the tech support.
5. I would say Warcraft is not supported on Vista.
6. Yes. Provided you know how and know what to buy. Again, read the
manual. Anything, just ask or Google.