Best Way To Get Started With Mac Development

Question

I just recently got my first mac. I do lots of programming on windows but now I want to get into Mac development. What are some languages i should know or tools i should use to

Answer 1

Cocoa(R) Programming for Mac(R) OS X (3rd Edition) by Aaron Hillegass:

Fantastic book and the author has alot of credibility - Apple brought him in to train their developers on Cocoa.