As a first time user, you don't know the difference. Go with the cheapest, and if you would like to practice you can get the multi release SPD cleats. I don't recommend these because you will unclip if you pull up hard enough and if you are riding fixed, that can happen and you don't want to accidentally unclip. If you decide that you like riding clipless, then you can invest in a good set of pedals or change to Time or Speedplay or whatever.