Vanderwal.net has a great little article about switching to OS X. This mirrors my experience with OS X also. I had one meltdown, which was partly due to a hardware glitch, but it was a problem that could happen on any OS (I was once again shown why you don’t just turn a computer off).
For anyone who is looking for a new computer. I do highly recommend at least looking at Apple. I have been pleasantly surprised at just how much I don’t miss my windows box.