Except for the ignoring part. Ignoring works quite well with my Aussie.
They are not quite as hardheaded as the ACD, but some are....so it'll be interesting to see which way Angus goes. Being as you got him so young, you're going to have a crazy strong bond with him, use this power wisely!
Otherwise, yeah, almost scarily intelligent, fairly protective when need be, very very velcro (you will never pee alone again). If you brush them daily (pin brush and a Zoom Groom are my tools of choice, with the occasional going over with an undercoat rake) and feed a good food like Innova or related quality, the shedding is quite manageable. But you should still probably invest in a good vaccum cleaner and lint roller.
Socialize him often and well, because there is nothing worse than a timid or aggressive Aussie. They are allowed to be reserved in new situations, in fact that what the standard calls for (so don't expect him to greet everyone with a yip and a bounce, although he might) but they should at least just ignore and not bare teeth or anything.
They will chase cats, squirrels, rabbits...really anything that runs. This can be managed with training for a good recall/heel, but it's something to watch for.
Do you have pictures?
Keep us updated!