I made my very first Mei Tai baby carrier some weeks ago. It was quite easy to make, I got the instructions from this website: http://www.make-baby-stuff.com/mei-tai-carrier.html. This Mei Tai has got interchangable panel which means that I could have a lot of different looking Mei Tais in one :) So far I've only got one panel, the one on the second photo. Maybe I will make some more in the future, we will see.
This is the Mei Tai without the front panel (on the background you can see my new sewing machine)