how to the first and most obvious question iphone

I am finishing with my Vodafone Blackberry tomorrow ,And have picked up a mint 2g 8gb to play with (Its Jailbroken)

Now i have my contacts on my sim etc. And i know the iphone does not use SIM memory for contacts if i am correct ?

I use macs at home etc. What is the EASIEST way to import my contacts onto the iphone? would it read them from my vodafone sim and import direct (Phone is unlocked) I have also got them stored in my "Address book" on the mac.

this is my main concern and i would rather not screw up


cheers