I own a mac and I don't understand the hype about how osx is better for video/sound/picture editing or vfx. Sure you have imovie, garage band and final cut pro on a mac. But equally comparable is widows movie maker, fruity loops, and ... well any other editing software. The mac exclusive software is often lacking some features of it's competitors or multi platform alternatives.
One thing apple is very good at is marketing cool (at least in the states) and making simple wireless connectivity between apple products. The macpro mobos are also pretty crazy and you can often get them for less than the equivalent skulltrail, granted its been a while since I have looked for dual socket desktop mobos.