Shoutbox

Does anyone know of a plug in that changes the way conversations are laid out to make them similar to mIRC? For example:

[22:34:45] <Luke> Hello
[22:34:50] <Dave> Bite me.

It would basically involve getting rid of the "Says:" bit, and adding the message onto the same line as the username. Also, it would need to work with custom names/time stamps.

So has this been done already? If not, is it possible?

Thanks in advance