I'm not saying a Macbook Air wouldn't be helpful, but a high school student does not need a lap top, period. The most rigorous tasks required will be word processing for essays and powerpoint for presentations. And in case you aren't aware, a six year old lap top can do just that.
I had an old 2006 macbook. This came with one gig of ram, and it could do MUCH more than simple school stuff. You say you want to edit videos? Well, I really don't want to be a downer, but if you want the mac just so that you can edit videos, you're looking at video production at the wrong perspective. If you have deliberate and articulate ideas for QUALITY, videos, then sure, it might be complementary to have iMovie. But if you just want to use the cool iMovie effects and reverse some clips to later upload them to youtube, then you should stop kidding yourself.
Bottom line: If you already have a pc that can handle the tasks you need to do, don't get a new lap top. Anyone who is so disillusioned to think they need a high powered machine for high school should think again. Agreeing with other posters, save your money for other things. And also, Why not just wait until you are a senior to start looking for a new lap top? If you do that, you will have the latest and greatest apple lap top, instead of going through two years of college with an outdated air.
Bottom line: If you already have a pc that can handle the tasks you need to do, don't get a new lap top. Anyone who is so disillusioned to think they need a high powered machine for high school should think again. Agreeing with other posters, save your money for other things. And also, Why not just wait until you are a senior to start looking for a new lap top? If you do that, you will have the latest and greatest apple lap top, instead of going through two years of college with an outdated air.