For a first low wing plane, you DO want a plane that will float somewhat. I will echo some of the others and say that the 4*60 would be an excellent choice. It is a very simple kit to build, and it is very easy to build the wing with either one or two bays cut off each side. It is also an easy kit to modify. I built the 4*40 and made a few changes like a enclosed balsa cowl, sheeted turtledeck, enlarged rudder, cut down canopy, shortened wings, and some others. The only difference in the build of the 60 over the 40 is that the 60 comes pre-designed for seperate aileron servos. No that I have a Saito 100, I will build a 60 as well. Another plus is that it's just a really nice flying airplane, and looks great too.