Creeper blew up in the reactor control center?
Careless feet trampling your auomated wheat tower's water shutoff?
12 year olds getting frisky with water buckets in your cave?
I've got the solution, but I hesitate to mention this, because it may be viewed as too redpower-esque, i believe it would be nice to have a IC2 block that didn't wash away or fall of at the first sign of trouble. . With the current disrepair of redstone SMP circuitry in vanilla minecraft, I believe it would be very helpful to the SMP player, and I like redpower, but I like seeing the style of IC machinery in my worlds and I prefer to run one mod at a time.
As a recipe, I would like it to have the detector cable as a component, glass fiber on the sides, and then surrounded the rest of the way by carbon plates or whatever. I think that isnt too expensive or cheap for what I want.
Then, perhaps, have redstone behaviors which I love.. Not necessary though.
I would like to see it have the need for an eu source, but not necessarily a constant one. Perhaps a rechargable battery, or a crystal that is completely drained in one use.. The only way to reset it is replacing the battery. This would be a classic dead-man switch which would require effort on Steve's part to reset.
The main function of this block would be a a lockout that emits red when negatively acted upon. The detector cable emits red when acted upon positively by eu, and redstone generally emits red when acted positively upon. The redstone torch as a source for a whole setup is our only option, and is too fragile for some applications.
It could be argued that It overpowers the circuit's creator in SMP, but I disagree. To make a simple dead off circuit in SMP, (since my favorite circuits still don't work) takes an impractical amount of space. This underpowers the circuit's creator as any old Steve with a bare hand can tap a redstone line and it's done instantly. I belies it would not become a replacement for well designed circuitry, but rather an embellishment of it.