i modded the sensor screenlet and the netmonitor screenlet. best look with netmonitor on left and sensors on the right side.
you have to try, which size settings look best for you
my settings: sensors 50%size, netmon 80%size and all 60%opacity on screen with 1024x768px
copy the unpacked folders to ~/.screenlets/
if there are probs in cause of the original screenlets, delete them from /usr/share/screenlets/