Yes, your mac will handle

Yes, your mac will handle flawlessy all that:
Pro video editing (FCP, Avid…)
Pro music production (Logic Pro, Pro Tools, Nuendo….)
Pro Graphic editing (Photoshop, Cinema 4D…)
The best web surfing experience: safari
Work with windoze docs (office.Mac)
Best networkable machines (connects to windows, unix, linux and more flawlessy)
In other words:

As far as you don’t want to lose time and patiente, go for a Mac