I clicked the "Learn More" link next to your irc.zymic.com thing, and I think you should add another client. ChatZilla. I really like it and I know tons of people that would prefer it over X Chat and mIRC. You could tell people that it's an FF add-on and if they don't have FF, they can use XULRUNNER.

The only reason we promote mIRC is because it is the most popular IRC client out there. It is well known and trusted. We don't have the IRC page to promote all the IRC software, we just offer one popular choice so that people can get started. If people are curious enough they can search for another program, or ask on the IRC server what everyone else uses. If we add chatzilla to the page, then we would get requests to add xChat (my choice of IRC client) and every other persons choice.