I hope you are not trying to claim windows is safe, i'd have to physically smack you then :P
Pens and Computer software are not the same, it takes a bit of time to learn a different way of doing things, writing with a different biro is nothing.
I'm not sure of the exactness of this statement, but Novell + IBM + Redhat + Sun > Microsoft
I can't fault microsoft's marketing department. They have managed to essentially glorify a pile of turd such that everyone uses or has used it at least once in their life, and its a result of damn good marketing (and NOTHING else) that windows has as big a share as it has now.
Vista is quite frankly not an improvement over XP. They concentrated too much on looks, and randomly decided to move things about and change things that have been established since win95/98, the security thing is a pile of balls, and the system requirements for vista are just stupid. Not to mention the 50 million different versions.
Switching to linux doesn't outcast you from anything. I made the switch a week before vista was released and have not found anything that I could do in windows that I can't do in linux.
Like your self, I've been a windows user since i could first bash a key. I've used every verison of windows from 3.1 to XP, but vista was the last straw, and I'd been threatening to switch since its conception.
Linux is change, and it takes a little bit of time to get used to, but its worth it. You get more freedom, and more choice.
Thats not to say however that linux isn't without its flaws. I still keep a 40GB drive with a clean XP install on it for the odd game craving - (yes linux can play most windows games, but my PC struggles with most new games under windows never mind linux, so its just easier)
Also the freedom of choice has saturated the markets for alot of things. For instance the windows-compatability market. To run windows .exes you have a choice of 3 programs, wine, cxoffice and cedega. Each of which do different things better/worse than the others, none of which are perfect - you end up picking the one that performs the best for a given app.
However, outside of gaming (which is the only thing windows has going for it right now) linux can do anything windows can do, and 99% of the time does it better.
Linux is also a ton more stable. My desktop uptime is going on 2 months now, i'd love to see you get that with a well-used windows desktop, i used to barely manage 2 weeks, the highest i got was 1 month before it was just quite frankly unusable.
(I will admit the advantages to linux do come with somewhat of an initial learning curve for people 100% new to it, but with google at your side pretty much every problem you have is solvable)
I put this challenge to you, get
kubuntu and install it on your desktop, and use it (without using windows (and preferably not wine either) at all) for a whole week, and then tell me what you think windows does better.