I'm currently very fluent in several high level OO programming languages so I'm not looking to have my hand held. I'm really interested in two things. What IDE is most popular or best for C on a mac (I'm leaning toward xcode although I have never used it). And what texts or online resources has everyone found to be the best (O'Reilly has always been good to me but I would love to hear what everyone else prefers). I value any input you have to offer so thanks in advance.