Remember when you are on the road that every one is trying to kill you! you gotta drive defensivly, dont read that as irratic or fast, rather you need to watch the cars and anticipate what they will do, always plan an escape route, you see a car turning into your lane, expect they don't see you, postion you and your bike to where you can get around or away if they violate your lane rights.
Always look where you want to go, if you fixate on something you will more than likely hit it.
Braking, 90 percnt should be done with the front, but you need to be smooth! if you lock up the front brake you will go down in a split second, you lock up the rear keep it locked till you stop.
Avoid the center of the lanes as that is a major area of oil build up and you have very little traction there. If you get caught in the rain, painted lines and reflectors are evil! They are very slick, avoid being on your brakes across them. Also, Make sure you're upright and square before braking, you brake while turning the result will probably be bad.
Gear up! yeah that jacket may look hot, but it'll actually keep you cooler and less likey to dehydrate, it keeps your sweat from drying too quickly, the helmet, well let me put it this way if I didn't have a full faced helmet on I wouldn't have a face ( accident was caused by some one violating my lane on a cold night). The pants... well the majority of your scars will end up on your legs on a get off, take care of them, good boots and gloves... it sucks when a bike smashes your ankle then rips your shoe off leaving you sliding down the road bare foot at 50 mph ( really, I know) and my gloves had holes burnt in them, but my skin didn't. Moral of the story, it doesn't have to be your fault, but it is your skin!
I really suggest taking the course ASAP, they are awsome and will teach you so much, worth every penny you spend, and will probably save you a lot on bike repairs.