I have look at the combines java chat client and have been using it, but, are there any other chat clients like this that i can use ad not pay?

The java client on the site doesn't require any sort of payment. If you are just looking for a more full-featured irc client, though, mIRC is the most popular Windows client. It does ask you to pay a registration fee after a trial period, though it will never force you to.

That goes for all clients that I've tried. Not one absolutely requires you to pay.