I've been using SVN a lot as a single user on a single computer
Now I'd like to share my stuff across multiple computers
So far I've been checking out from file://c:/myproject
I'd like to checkout from svn://mycomputer/myproject
How can I map the first into the second?
You need the svnserve deamon. The documentation to configure it is here (paragraph on "svnserve as Windows service"):
http://svnbook.red-bean.com/en/1.5/svn.serverconfig.svnserve.html#svn.serverconfig.svnserve.invoking
You may also want to look at other possibilities to acccess you svn server in this chapter.