As a newcomer to the concept of caching to improve speed I read Jacob's helpful W3TC plugin post, including the sentences. "What [caching plugins] do is cache the first visitor's request of a new page to a plain HTML file on the server, then when another visitor comes through and requests the same page, so long as the page wasn't updated in your administration section [...] the cached HTML page will be served." That's clear, but can someone please just confirm to me, as someone just about to plug content into big static a new site with the expectation of having to tweak it over a period of weeks, that when is page is updated, the new version then gets cached in the same way. Seems likely but I just need to hear someone say it. Also, can someone point me to reasonably detailed info on the configuration categories in the new version (0.9.2.9) of W3TC? Thanks ...
The answer to your first question is yes, any updates made to pages will be cached in place of the old ones, so they are served displaying the newest content. As to the configuration category details for the plugin, the best source of information will be the actual plugin page itself: Wordress Total Cache Plugin page
Many thanks indeed, Scott. On point 2, I should have made it clearer I was actually looking for a source that would give me guidance on which settings to choose, but one way or another I think I'm getting there with that so need need to bother further.