Yup. Several years ago I had this wonderful idea that I should make a website so me and everyone could mingle and socialize I had it all figured out and when I described it to my friend, he said to me... You mean like MySpace?
On topic, I know buildcraft has fillers that do something similar but perhaps a system that runs off RF that can convert one type of material into another as long as there is adjacent blocks. I.e. build structure out of quick construction materials get it right hook up system run converts to fancy obsidian bricks? Requires lots of energy and lots of obsidian bricks?