Visualizing users moving around a site

[r_sarvas]

Are there any software packages out there that allow you to visualize where users go on your web site, and how they move between pages? I have AWStats, and it's nice in that it shows me what pages are hit and how often, but what I'm looking for is something that will allow me to graph, for example, a user initially hitting page A, then moving to page B, then moving to page C, then going back to page A again, and then from page A going to page D. Something like this:

A -> B -> C
¦
v
D

I know a product called VisitorVille can do something like this (as flash animations), but I really don't want to spend money on a software package just to satisfy my curiosity about how web traffic flows on my personal web site that mostly relates to online game information.

I've done some initial experiments using Perl and the Graph::Easy module on some log file data and I found that I could generate ASCII graphs of a user's session on my web site easily, but I noticed that the Perl module has a number of limitations and tends to not work well when there are over 60 page hits by a user.

Does anyone know of an OpenSource project that does this sort of thing, preferably in a graphic format?

[AjiNIMC]

Yes visitlab does it. They show complete path for each visit.

[Receptional]

I hear Visitorville has a free version these days.

Indextools is great at this - but not free.
My guess is that Clictracks will also be brilliant for this.

Dixon.

[HTMLme]

Yes, ClickTracks does cover this. They also have a neat way of tagging start and stop points so you can look at various paths at one time.