Photoshop Plugin and Cocoa

[Florent Lacheroy]

Hi,

I am completely new to Photoshop Plugin development.
I have already developed the core functionalities of my plugin using C+ 
+ but now I'd like to integrate a Cocoa interface.
Is it possible to use cocoa nib? How can I load a nib into my plugin?
Is it better if I put my existing code into cocoa class?

If someone has a skeleton of what such code should be, that would be  
great.

Thank you,

Regards,

Florent.