What do I need to know before switching to a Mac?

[nesser1981]

I'm planning to make the switch this summer sometime. I did use a Mac when I was getting my degree in photography, so I get how they work, but I finished school in 2014, so I'm a little foggy on some things.

Should I just buy through the Apple Store? Do I need their mouse or can I use a regular USB? What else would I need to start with?

Anything else you can think of that would be helpful? I know there will be a learning curve for sure.

I'll need to organize all my scrap stuff again, which will suck.

My current laptop isn't bad, I've only had it about a year, but I've been doing this long enough that I'm ready to get a MacBook.