I've had ipods for ever but i would really love an Apple Mac computer. I have had PC's my whole computer life and for my first Mac i want to know what to expect.

I just wanna know what i'm in for when buying my first Mac. Like;
1) when i buy the Mac what does it come with & doesn't it come with if i buy it from an Apple store? 2) what little costly extras does Apple tend to leave out that are important? like mouse, cables, etc
3) Is the transaction from PC to Mac easy or do i need tutorials?

Practically any tips towards a new comer would be great