I switched a little over a year ago and I freaking LOVE it.
I program for windows, I also make a living fixing windows, I have nothing against windows but Mac OS is much more stable and speedy. Here are some things I love about mac. You may or may not benefit from these but here they are:
-Everything I need I have right on the dock and I open in one click, verses "start, menu, etc". On mac, if I have shortcuts to a program they are in the dock not cluttered all over the desktop.
-No need to run antivirus. I think there is one virus known for mac OS at the moment and its downloaded through a fake codec for porn sites or something like that.
-Frequent updates and fixes. No waiting for security patches or sludging through Microsofts site when your automatic updates doesnt find a patch. With mac, if a problem is known a patch seems to come out instantly. (I also have yet to see a problem which I would need a patch for but they come out)
-BUILT IN ISO SUPPORT!!!! No downloading damon tools or anything special. Its all built into the OS.
-Speed. My mac is much faster then my windows machine (and my windows machine has better hardware).
-Ability to run windows if need be. (and programming for windows I need to)
-Ease of use. (Everything is just more logically placed on a mac it seems. No wading through endless menus to get to things.
After I fell in love with mac I bought my parents and sister one and other relatives saw them and now own macs as well. Its addicting
