*Thank you so far!*
Well as I said,
I'll be using this strictly for design/graphics with little video editting.
The school does use Macs (G5's)
and files from Photoshop/Illustrator/Flash/Etc. are compatible with both Macs and PCs... So importing my files from one machine to the other isn't a big problem..
I' know basics for Macs, as long as they're working, I'll be able to operate on them. But once something goes wrong... I wont know what to do!
I've personally always used a PC, but I actually don't mind either brand.
It comes down to the price difference, and it's about $650 more for a powerbook.
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*everytime you guys mention the flashyness, it's actually an insentive to buy the acer

reedit
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*i've done the student discount, it's 10%