Oh sure Monaco is the cool product right now, but if you want to create Windows 8 Apps quickly then you need to take a look at http://www.TouchDevelop.com/hoc
What can you do with TouchDevelop? Well for a number of theologies you might be in the gift giving time of year. You could create a cool Windows 8, Windows Phone 8 or Web App for your friend, family or friends.
Of course you would have to pay to create the Windows 8 or Phone app, unless you were a student then you could get access through http://www.dreamspark.com if your school has a .edu email account or a DreamSpark subscription.
Easy to get started with development using TouchDevelop and it’s FUN!