Transfering data from iPhone back to iMac

[yiyi001]

Hi. My Mac's hard drive recently crashed and everything is wiped out. I have a new hard disk now.
My question is: How do I transfer data from my iPhone... back to my Mac? I would like to transfer data from my iCal, iTunes, iPhotos, SMS and contacts.
Would appreciate some advice. It's been a very frustrating experience. I don't want to screw up and end up deleting all my data from my iPhone instead.

[A3gOwner]

Connect to iTunes and right click on your phone and select create back up. That should get most everything.

[green7o7o]

Log-in in to your iTunes account on your new Mac and then sync as normal. You'll be asked if you want to copy stuff from your iPhone to Mac (which you probably want to do) and then you should be able to continue as normal. Remember to authorize your new Mac with your iTunes account as well.
Besides there is a step by step instruction on how to transfer or backup all iPhone datas to iMac.
Hope it can do you a favor.