Having found the excellent TOAD for MongoDB (and other NoSQL), Windows is starting to be an okay development platform.  Not as good as Mac or Ubuntu, but not bad.  From Eclipse to SBT to GIT to BASH, everything you need for Node.JS, HTML5, Mobile, NoSQL and Cloud PAAS development is available.

WebMatrix 2 lets you edit JavaScript, Node.js with, HTML5, CSS, Less, CoffeeScript, Images and connect to MySQL.

Great Extensions

OrangeBits

NPM

http://extensions.webmatrix.com/

http://jsfiddle.net/

Resources

http://dotnet.dzone.com/articles/webmatrix-2-rc-html-css-nodejs

http://blog.ntotten.com/2012/09/06/hacking-node-js-on-webmatrix-2/

http://www.nodejs-news.com/nodejs-tech/nodejs-webmatrix/

http://www.youtube.com/user/WebMatrixMS

http://blog.stevensanderson.com/2012/07/09/node-js-development-with-webmatrix-2-and-express/

http://jbeckwith.com/2012/06/07/node-js-meet-webmatrix-2/

http://www.lynda.com/Nodejs-tutorials/Nodejs-First-Look/101554-2.html

https://github.com/MicrosoftWebMatrix

https://github.com/MicrosoftWebMatrix/NodePowerTools

http://www.microsoft.com/web/post/how-to-use-the-nodejs-starter-template-in-webmatrix

http://vishaljoshi.blogspot.com/2012/06/announcing-webmatrix-2-rc.html

http://channel9.msdn.com/Shows/Web+Camps+TV/Coding-Nodejs-in-WebMatrix-2

http://www.hanselman.com/blog/WebMatrix2FrontEndWebDevelopersTakeNoteASPNETPHPNodejsAndMore.aspx?utm_source=javascriptweekly&utm_medium=email