Hi Paul, thanks for the reminder on this, I think that I am going to experiment with funnels and goals on a couple of my affiliate sites as this could give some useful stats (even though I will not actually see the sales conversions since these happen elsewhere).
Where I was coming from in my post was seeing the actual search term used when someone clicked on your PPC ad. The following articles give some useful tools for doing this (plus give a good description of the issues):
How to Get Detailed PPC Keyword Data from Google Analytics | Google Analytics Experts
and
Exact Keyword Tracking with ga.js: Unofficial Google Analytics Blog
I use the first approach with filters on a couple of my PPC sites. If anyone knows if GA now provides better data without doing this then please let me know.
J.