Basic counter?

Is there a way to add some kind of plug-in or hack that would allow me to display a basic counter? Doesn’t have to be anything fancy, maybe the only thing is to register unique visits rather than hits… but if that’s too much then hits.
If anyone knows anything better, that would work too, but my main interest is to be able to see the visits from the front page.
Keep in mind that I’m just beginning with wordpress, not used to PHP or anything like that (but going to learn it soon).
Thanks in advance.