Okay, I'm making (or attempt to make) the monorail idea suggested earlier. As a first run, I'm making a maglev rail + train and I was thinking "Hey, how would I code the MagLev rails to work with wires? Underneath, of course, powering directly into the rails." Now, I figured a problem to this: Each wire split at the moment halves the total power in that line. So, even if you toss 10k power, you'd have enough power to split 9/10 and still maintain around 100 EU. that's 30 blocks with the whole plan deal thingy-mabobber. So, to solve this, I was thinking of a wire block similar to a relay: A siphon. Capable of pulling out about 10-20 EU from the main power lines, even HV, and feed it to objects on the other end. This could help with factories as well, giving machines full power from a line minus what previous siphons have eaten.
It's just a thought:
R = Redstone
E = Relay
I figure a Relay's already expensive enough for such a simple device. And redstone is SO COMMON!