This is likely to be a completely stupid question but is it possible to make a cocoa-java app using Interface Builder and Eclipse instead of Project Builder. I have been programming in Pure Java and am thinking about making a Cocoa-Java app. I tried java programming in PB and Eclipse is much better for Java (using 12 inch Powerbook). I suppose you can import the cocoa Foundation classes with a simple import statement to make the business code in eclipse, it just hooking up the thing to the GUI that would be the problem.
BTW, just doing Java for a hobby and have no professional training.