Don't bother GMCD, he's probably a kid that bought a MAC using his father money, and feel so proud of it.
I'm doing I.T. business in terms of hardware and software, as a employer, I need to know what my staffs are doing, I know how to create flash and website, even it's simple or beginner level, I'm expert in terms of hardware components.
All my staffs are using WINDOWS and LINUX to do their stuffs with dreamweaver, flash , photoshop, illustrator, fireworks and programming. Which means, not only MAC can do those stuffs.
BUT I've once used MAC, (My friend gave it to me, he bought a new PC), I used for 30mins, and I gave it back to him, I rather use LINUX on my crappy Atom Nettop.