The school may very well use macs, but there is little reason to.
Macs are nice looking computers. Apple does industrial design well. If you makes you feel more creative to use a nice looking Mac over a bland beige box or some alien outer space looking thing, I won't discount that, but as far as tools for getting the job done? I don't buy it.
"Macs are better at design", has not been true since Windows 2000 Professional.
There was a time when Final Cut Pro was revolutionary and destroying the world of $100,000 Avid systems, but that was 10 years ago. The PC counter to that was PC dominance in 3d apps and video cards. Now that Premiere Pro is not total junk, and Avids are not $100,000 anymore, there really is no clear cut statement that holds water. If you need FCP or Logic, fine, get a Mac. But personally I enjoy the CS4 workflow between PS, AI, Pr, Sb, AE, etc.
Otherwise, you can get it done with a Windows machine, no problem.