At 6am when it still hadn't launched, I hit the hay because I had a full day and needed a bit of shut eye--I ordered around 8:30 or 9:00 and by then most of the lipsticks and eyeshadows were gone. I had only wanted to get AS, but ended up ordering both ED bronzers along with the only two eyeshadows available (SS and LL). At the time I kicked myself for lack of restraint, but I actually am really happy with everything and am going in bright and early tomorrow for more!
Most of the Mac stores in Vancouver have pulled stock for the AA makeover appointments scheduled for tomorrow. Don't know if this is the case for your store, but I was told to get there first thing because stock is low.
Hope you can get what you want!