TheMadScientist - 10:26 pm on Feb 8, 2010 (gmt 0)
Cool, that's what it should be... Just checking.
Leaving it or serving a 404 will work with the removal tool if you decide to go that route. Either with or without the removal tool I would probably personally use a 404 (or more likely a 410) and let the URLs be spidered so there's actually a more recent version of the content (none) at the specific location than what they have cached, but if you use the removal tool it should be gone for 6 months for sure, so it may simply be about personal preference, but IMO if you have the URLs disallowed they may revert to the old cache when the 6 months is up, so I would want to tell them each page is Intentionally Removed (410, Gone) personally.
It takes a bit of knowledge of mod_rewrite or a scripting lang. to serve a Gone error, but it's my preference for pages I have removed the content from, especially over a 404. I guess you could do it if you serve a custom 404 page in PHP and then set the header as 410 Gone on the actual error page, but I haven't tried it, so double check with a Server Header Check tool (like the one in the control panel here) if you try to serve a 410 this way...