importing Outlook mail to Thunderbird on MAc

hi all

new to the forum and to MAcs! just got my new mac book pro..
one word...WOW!
man..I always knew they were superior...just didn't realize how much! sweet machine!

one thing I can't seem to get a straight answer on is on how to migrate my outlook mail and contacts from my old PC to my MAc.

I'm sure there's a way, I just can't find it to save my life!

I really need to transfer all that data so any help would be greatly appreciated

thanks

Pabs