I second what Shefly says about SPDs and toe spikes. And I'd add that a pedal that has a platform to it can be helpful as many times you'll mount the bike and want to start pedalling without having clipped in yet. I run these and like them a lot. My BF has a new set of M647 that he'd be happy to sell for $90 if you are interested. PM me if you are. They are like the ones I ride but one level up in quality.