It’s the first I’ve heard of it, but apparently the web design community has been getting all hot about Mint, a new stats package going for $30. My Irish friend John has tried it out, and seems very happy with it. I might give it a shot, as I’ve been using the fairly-lame Webalizer for years.
I’d like to see a live demo first, but Mint’s is down at the moment. Ironically, it’s because they’re getting too much traffic.
DarrenBarefoot.com 
Darren, if you want a trip on it I’ll let you use my installation and you can have a peek around.
I’ve been using delineate for a couple of days now and I like it. Seems similar (although hosted) to Mint and it’s free.