HTML 5 Editor

I have started playing with HTML 5 at home and want a fast, reliable, validating, auto-completing editor; preferably for both HTML, CSS and Javascript. So far I'm using Expression Web, but since this is for hobby use only, I'm looking for a free alternative before the trial expires. WYSIWYG is irrelevant.

These probably don't fulfill all desired features, but they are the initial candidates unearthed:

• http://www.w3.org/Amaya/
• http://ourcomments.org/Emacs/EmacsW32.html

Suggestions?

@exoteric: Have you checked out Visual Web Developer? SP1 brought some HTML 5 support, and there are some extensions in the VS gallery that expand on that.

+1 to VS Web Dev. Use the Web Platform Installer to get everything you need. http://www.microsoft.com/web/downloads/platform.aspx

Visual Studio uses the same editor as Expression Web but is not as feature rich

http://www.aptana.com/products/studio3
http://www.microsoft.com/web/webmatrix/
http://www.sublimetext.com/
http://www.e-texteditor.com/

In order of preference

Thanks for all the suggestions (in particular thanks to Kolin1). I had actually somehow forgotten about Web Matrix. I need a solid client-side development tool, more than a server-side tool as this is just for playing with HTML 5. I'll try out Studio 3 and the others.