I recently bought my first Apple computer, a Macbook Pro. As far as the OS and general use, I haven’t had the “never going back” experience that a lot of Apple users claim to have. It is a great computer, but I can’t say that it’s significantly different from a Window’s computer. There are several minor differences, some of which I like and some I don’t, but you’re not diving into a whole new world. Contrary to what you might read, Macs are not invincible. They do lock up, and they will give you your fair share of hair pulling moments just like you get with a PC. Macs tend to have higher price tags too, so make sure you do your research before you buy into all of the hype.
That said, I also made the switch to Apple exclusive Logic Pro 9 and I have to say that I am impressed there. Logic is a fantastic program. It made the whole switch worth it in my opinion.