I'm trying to automate the build process for engineering group. As part of that automation, I'm trying to get to a point where the act of applying a specific tag that adheres to a pattern will kick off an automated process that will do the following:

• Check out source code
• Create a build script from a template
• Build the project

I'm pretty certain I could do this with a post-hook in subversion, but I'm trying to figure out a way to do this with something other than a subversion hook.

• Would it make sense to monitor the tags directory in the subversion repository to kick off my workflow?
• Are there any decent tools that help with this (.NET would be great if possible).
• Am I better off just writing an engine to do this?

My preferences:

• Existing product that does all or part of this
• If development work needs to occur, .NET is preferable
• Works with Windows (we've got a Linux based repo, but builds all occur on windows)