VisualSVN looks like a great Subversion integration plugin for Visual Studio. Watch the demo. $49 per license though.
VisualSVN Server is a all-in-one installer for Subversion+Apache. Currently free, but it's in beta. However, since it's something you'd tend to use one time, rather than something you'd use every day, I'd hope it'll remain free.
Update: E-mailed the nice VisualSVN folks and was told VisualSVN Server will remain free.
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