A new direction?

A friend of mine recently asked me to help him UI design on an OSX application he’s writing. I’m totally new to this field and hopefully my web background will help me out. Before I totally dive in I’m getting used to Apple’s Interface Builder software which is rather confusing for a newbie like me yet oddly familiar. I also found BWToolkit which is a collection of pre-fabricated UI elements ready to add to an application through Interface Builder.
