For keybinding if you use wasd like most i found changing the "MOVE" button to W to be more natural then base my keys around that. I use w to move (you move in the direction of your mouse) then asdqer for my action bar keys.
Check this out though, found a way to farm goblins at damn near breakneck speeds because of the lack of "random" in this game.
What you do is you and 3-6 friends all head over to act II inferno (really will work anywhere but this is where i know goblins spawn)
Now there are two way points you'll want to check.
Road to alcalara (sp) and;
ANcient path.
What you do is each of you (3-6) people run single player games, and check these two spots for goblins. When you find a goblin, clear the area around him, then invite your friends (killing inferno mobs 1v mobs is easier than 4v mobs). After you kill the goblin you reload and look for the goblin again. With 4-6 people all looking for a goblin i kid you not we'd kill a goblin and then everyone would leave and join their own games, no more than 2 minutes would pass before we someone would be like, "got one" then it was a mad dash to see who could join first
between the group of people I was running with we found 3 recipes, 2 legendary, and 2 set pieces, with a myriad of rare and blues.
You definately want to clear the area around the goblin with your dps set and then switch over to a MF set when killing the goblin. Minimum MF we were allowing was 190. The beauty is that because you cleared the area you really only needed enough dps to kill the goblin.
I must have killed a hundred or so goblins last night.