If you want to be good at building gadgets, well, here's a starting point.
|Gadgeteer (40 point template)|
|Science, Technology (+2) Expert|
|Force Field [Device]||4|
Clearly this guy is still on the human side of things; you could spend your points on a higher intellect or on a higher Gadgets skill, or both; you could have the Force Field and Flight as Masteries of the Gadget power and then both could be at a higher level (but you're screwed if you lose the utility belt).