I'm looking for advice on packages that will best show a site visitor's path through a site based on what search term they searched on at a search engine. I don't mean PPC - I mean if someone goes to google and searches on Red Widgets, then clicks on a natural search result that goes to my site - how can I best track what pages they follow throughout my site based on what search term they used at the search engine? Thanks.

ClickTracks makes this exceedingly easy. Other tools may do so as well, of course.

Many of the more robust web analytics packages provide this kind of reporting. Keep your eye out for packages that allow you to run segmentation reports. You can build these reports yourself if referral source / keyword click-stream reporting is not standard.

I'm looking for advice on packages that will best show a site visitor's path through a site based on what search term they searched on at a search engine. I don't mean PPC - I mean if someone goes to google and searches on Red Widgets, then clicks on a natural search result that goes to my site - how can I best track what pages they follow throughout my site based on what search term they used at the search engine? Thanks.

Hitslink (http://www.hitslink.com) (by ToolShack) is by far the most robust for general queries, referrals & site nav path tracking. Additionally, the enterprise edition allow tracks through to sales conversions, but admittedly quite expensive.

Indextool (http://www.indextools.com) is almost a good for general queries, referrals & site nav path tracking. The real power with this one is the track through to sales conversions but with referencing to what referrals are converting e.g. a Yahoo listing that sends 500 queries over the year produced $0.00 sales revenue may not be worth paying the renewal, and/or targeting specific PPC terms, etc.

I agree... ClickTracks is the best one for this... It's also one of the more reputable ones out there, and isn't expensive.

Webtrends is the most reputable, and has some of this analysis, but costs much more.