Hi,
I have always shot jpeg.... BUT then I finally decided to start shooting in raw after so much advice here on AP. The result is ,it is great. You have so much more control. Images that were ok become keepers. Also iPhoto on your macbook will store them the same as your jpeg. So you can view them in the same way as you always have. But if you want to edit then you open them in photoshop or similar.

Cheers