Webtrends style reporting for linux?

[brian]

Here is the scenario, I need to provide a handful of customers with
(weekly|monthly) "comprehensive web statistics reports".  This is done
currently using WebTrends on a Win2K box, which I want to kill for
various reasons.

The solution doesn't have to be "webtrends", but should offer similar
detailed log analysis.  Can anyone recommend anything good (or provide
an anti-recommendation/warning)?  And of course, I want it to run on
linux natively.

Thanks...
-- 
brian <lists at karas.net>