Hogan
There are a few micromanagement aids I think could be very useful and still require playing the game.
1) Having the ability to say goto point (x,y) could be very useful. You could even restrict the system to only allow (x,y) to be a line from the current point.) You are not having the computer do the work for you, it just gives you a little more flexibility in the long term commands.
2) Having the ability to jump to or see a list of units which don't have commands would also be very helpful. It easy (esp. on the large boards) to lose units or to forget about a plan you hatched at 3am.
3) A standard usage with CTs is to make a base, move off the base and then set a full attack for the rest of movement, since you can't build a unit if the CT is on the base. It would be nice if there was a way to automate this (a good interface does not spring to mind, but your interfaces are excellent johnny, so I'm hoping you have a good idea).
1) this is perpetual in a nutshell. you just don't get to set a point to stop you just go till you hit something. I think very little distinction between the 2 there.
2) I agree with this one. just a cycle through idle units button or a menu option very similar to battle log that as you mouse over your idle units poof you pop over too them.
3) there isn't really a clever fix from Johnny's (that comes to my mind) but if you put move on HotKey this becomes a 2 click move (minus actually build the base). I personally recommend M.