a word of advice, as someone pretty new to clipless (well, to cycling) too -- the first, most important thing to do is to find your "clip-out" foot and make unclipping on that side automatic. (It feels like you'll never get it, then all of the sudden you don't think about it). But also important -- DO develop the ability to reflexively clip out quickly on the other side too, or else you'll go down if you happen to lose your balance for some reason on that side (I took a stupid, completely avoidable tumble about a month ago and learned this lesson!).