SVN and deployment methods

[eluser]tmcw[/eluser]
So I've been coding away at a fairly large web application in CI (now 1.6) and I'm almost ready to deploy it. My deal is - some configuration details will, of course, change in deployment. I've been able to narrow these down and move the non-database and non-standard ones into a separate config file, but I'd like to figure out how to use Subclipse, CI, etc, together to make deployment better than updating on the deployment server and then feverishly swapping in live config files. Is there an established technique for this? Could I set one file to be ignored in svn and another to be used in production? Should I detect what server it's running on? Also, what's the best system for having an alternate DB config file?

Any help would be much appreciated! Thanks!