Easiest free irc program to use?

[UnlimitedMP]

I've never used irc before and was wondering which client was the easiest to use (reliable too etc) and free.

Mirc says it costs 20 to register and I won't be using it more than a few times so it wouldn't be worth it.

Another thread mentioned: Leaf, mIRC, ChatZilla, Gaim, Node, Miranda, JChatIRC, hydrairc, and Polaris 1.11. So many! Which would be easiest?

Thanks.

[Cheetoz]

mirc never expires tho.

[That_Sound_Guy]

even though you should support the company and creator.... mirc just waits 5 seconds to start and you click continue if you dont pay. Never shuts off because it isnt licensed or registered.