Have a look into flat pedals as well.
I ride flats on the Road, Cyclocross and XC MTB.
My experiences are the same as in the link. (I will also add part of my resoning is I had a real bad accident that I put down to being clipped in, that combined with a better riding experiance means flats for me)
http://www.bikejames.com/cardio-trai...s-pedal-myths/
Im looking into getting a set of these.
http://www.pinkbike.com/news/Tioga-M...Tire-2011.html