Beta Testing who do you use?

Hi Guys,
I am developing a plugin that adds sidebars, content areas and footer widget panels, I have called it ‘cms lite’ it has taken me quite a lot time, and I am now building in error checking help screens and nice notices when something has not been filled in correctly.

As I have worked on it and built it from an idea, I have tested thing as I have gone along, the next stage before offering it to the extend section is the beta testing, how do you find people to test things for you, is there a site or forum?

Overview of this plugin, it will create extra sidebars up to 4, 12 content panes, a dynamic footer bar with up to 4 wigitized areas, a css generator and a template maker, this is all done on a local WordPress install, the last step for the admin is to deploy and package the theme with the template to any sites or customers as a stand alone theme.

So it will need testers that know thier way around WordPress.

Here is a sample website I created by hand coding and the reason I have developed the CMS Lite to help others

Any Ideas?

David