Hey DS, I got a macbook about 3 years ago. It was difficult initially making the transition , much akin to when the Browncafe made a major format change. It wasn't that the mac way of things were wrong, in fact they might be better, but it went against the grain.
Thankfully, my brother is one of those apple fanatics and was able to talk me off the ledge and in three days I came to like it.
As Cheryl pointed out, macs are just as susceptible to malware , it is just that the malware makers try to get the most bang for the buck and target Windows.
If you like playing video games, they do not make too many games for mac as opposed to the many made for windows. As your link pointed out, DS, you can run Windows programs on a mac, but you have to buy software called "Boot Camp" which last time i checked was about 150 US dollars.
One final note, mac has something called "Garage Band" which allows you to do alot of things , amongst which is running your guitar through an amp and recording what you play. You can then hook up a microphone and recording your singing over the track. You can have multiple tracks with multiple instruments in case you want to make a song . I know that they are a lot of built in effects such as different types of drums. I haven't explored it too much but based on the little exploring I did it is pretty cool. I could see a professional musician using it in place of renting studio time.
In short, I like my mac.
One other thing, if you do buy a mac, be prepared to buy "dummy" books as it is hard to intuitively determine how to change things on a mac such as settings. The dummy books cover a lot of what you might want to do . Surfing the net is easy and a dummy book is not needed.
If a dummy book doesn't cover what you need, be sure to google the issue and you will be sure to find it covered out there somewhere with potential solutions.