Go for pro jumps for a few reasons..
the price cannot be beaten, they are genuine retailers not knock off merchants and the most important reason, THEY REAL NICE PEOPLE TO DEAL WITH!
as for the noise thing, yeah its s**te, and you can do everything on pro jumps that everyone can do on every other brand of stilts, granted theres a CHANCE youll be doing it slightly higher on skips, but does an extra foot of hight out weigh that £565 extra as a beginner?