Hi,
I am currently using a 7 year old Mac Laptop (G4) with Apples latest OS. It runs really well for me except it can't handle the latest HD video cameras. (I guess that is why my wife gets to take care of the kids videos.

) Generally perceived performance has just gotten better over the last couple of OS updates but I will probably upgrade in a year or so.
I use Windows PCs at work and I agree that Windows is just really hard to manage. A lot of my coworkers have been getting Macs lately. The good news is that current Apple HW can run Windows if you decide the Mac OS isn't for you. We just got our kids a Mac Mini at Christmas and it can switch between Mac and Windows pretty quickly. Needed to do that since Grandma decided the kids needed a game/toy that only runs on Windows.
My experience with recent Mac purchases is that they run about the same cost as similarly configured quality PCs. People can always find a similarly spec'd PC or go all out and build their own for less than a Mac but if you compare to some of the brands with good quality reputations you will find that Macs are very price competitive these days.
No tool is user / idiot proof. My dad uses Macs and can get into some interesting things from time to time. Of course when I think about turning him loose on Windows I just start to shudder.
The only other advice I would offer is get a real mouse - Apples 1 button mice and their "mighty mouse" drive me nuts. I like Logitech and Kensington 3 button mice and the cool thing is you plug them into the computer and they "just work" for basic 3 button mouse functions.
Personal Computers (all types) are a personal choice. I like Macs for a lot of reasons that don't apply to a lot of people.
Try to find one to play with and good luck.
- Eric