Iv'e had a Macbook Pro since Christmas and just got an iPhone and this syncing malarky is doing my head in.

The first sync like many i suppose was a real nightmare not sure what got overwritten but it wasn't what I expected anyway what I want to be able to do is:

1. Sync music from my mac to my iPhone (done this OK).
2. I usually add appointments to my iPhone so I want to sync the calendar on my iPhone with my mac.
3. As I add contacts to my iPhone I want to update the contacts on my mac and visa versa.

I have a BT Internet E Mail Account (BTYahoo).

I have read that when you first sync you get the option to merge i must have missed that.

I have looked at various user guides but they all seem very basic.