One thing that has quite possibly bugged me since I got going with IC1 and 2, is the fact that the circuits require Refined Iron to make.
Pointless to say, I am a fan of realism, and would like silicon to be made by putting glass into the furnace and making this the necessary component for circuits.
I'm well aware that IRL you would have to heat the sand (SIO2) and purify it, but though I like to be real as possible, I understand that this is Minecraft, and some rules can be bent.
The way I figure that this would work would free up precious Refined Iron and give a value to sand outside of the Reinforced glass and being able to instantly dry the CF. Do keep in mind that the rest of the components would remain the same (redstone and cables).