@XelaMon: after seeing the demo from the PDC, I tried Orchard, that can be used directly from WebMatrix. It's a really simple, open source CMS written in .NET (based on MVC3) and it's actively maintained (even too much so).
- supports the Razor syntax, which makes it easy to customize.
- supports SQL Server Compact; no need to go and get SQL support unless you expect a major flood of pages.
- supports LiveWriter (once you enable the appropriate modules from the Dashboard). Not strictly necessary, as TinyMCE does a pretty good job already, but it can be convenient.
- the documentation is sketchy: as soon as you step out of the most common scenarios you will have to find out things on your own. My advice: look at all of the videos. Even if you don't think you need that specific feature right now, the video might mention some module or tool you wouldn't be aware of otherwise.
- check that your server has the right prerequisites (or even better, try to publish the default site) before you invest time in it. Not all the hosting services support it.
- It's not very popular (yet). Lots of modules, but very few themes. You can create your own (or modify the existing ones), but if you are looking for inspiration you will be disappointed.
Worth a try.