Noob Question learning Obj -C

I am new to C and C++ never mind Obj -C which I know you have to learn the basic C first. I learned BASIC extensively with visual basic on a PC but I wish to move to mac and especially iphone programming. Can anyone point me to some REALLY basic starting points (hopefully free tutorials or books online) for C, and Obj -C) I own a macbook and an iphone since 1.0 and have jailbroken it all the way (I know that isn't really programming for me) but I do know a lot about how the iphone works.
Thnx
John