There was a mod I know of that made it so one strike of your pickaxe destroyed the whole node (and ores of course came to the surface). I can't remember what it was called... But I guess at that point you might as well just use "devcommands" and "spawn xxxxOre 500" or something, hah.

Other than that one, I can't really think of others at the moment, and I guess they'd be out of date as well.