It’s much simpler than I expected! I originally wanted to leave it till i’m back home but did it in less than 5 mins..

All you need to do is to fill in the boxes to generate the code at
http://developers.facebook.com/docs/reference/plugins/like

My code looks like

<iframe src=”http://www.facebook.com/plugins/like.php?href=http%3A%2F%2Fwillyfoo.com&amp;layout=standard&amp;show_faces=true
&amp;width=280&amp;action=like&amp;colorscheme=light” scrolling=”no” frameborder=”0″ allowTransparency=”true” style=”border:none;
overflow:hidden; width:280px; height:px”></iframe>

If you’re using WordPress, just go to Widgets and create a text widget and paste it in! Simple as that!

Update (27th Apr) : If you want to add the ‘Like’ or ‘Recommend’ button to individual blog posts, just add a plug-in.
There are a few available, I’m using http://blog.gunnjerkens.com/2010/04/facebook-like-plugin-for-wordpress/