I have been playing around with the Urls that I use internally to the site. Some links have been using search engine optimized links (like ./snippets/) and some use the DAX (Divide and Conquer, like "?dax=blog.search"). At first it seemed that Google was not indexing the dynamic DAX pages (while Jeeves, Yahoo, and other search engines where); however, in the past few weeks, I have noticed that, while not often, Google does in fact make it's way to parts of the dynamic sections.
So, should I keep using the nice Urls? They add overhead to the page processing time. They also potentially create a bottle neck in the site since they all go through the error handler. But then again, so do links with the "index.cfm?dax=" format. I do like the look of the nice links and they certainly make tracking web stats much easier as they are unique pages instead of unique query params to the index file.
For now, I will keep them. But I am still building out the site. Who knows where I will optimize going forward.