Bwaaaahhh!! Ok have to admit it - I forgot to torque the lugs on the rear wheels, thats what the noise was. Bet I'm not the first one to do that hehe.. so a lot was learned in this task. For now alls I did was free up the piston on the passenger side, I'm going to order a new seal and install that next. I think this should do the trick for the winter.. so test drive today went fine, I think there is a tiny tiny bit of shake on the passenger side but its really minimal, I'm going to keep driving and see what happens, might replace that rotor (Edit: no rotor is fine because braking is smooth, the wheel is prob out of balance). Now that I know how to do the front and rear brakes I've got a lot more confidence to tackle something a bit more difficult, that control arm. And installing the new end link adapters rabbit sent me.
I want to close up with one thought about bleeding brakes - I have a whole roll of aquarium tubing and wonder - can't I run a tube from the bleeder up and back into the main reservoir, and then just pump the brakes as many times as I want like say 100 times? The tubing is large enough on the inside for the air bubbles to rise and that way the brake fluid could just be cycled around. Just a though for when I do that caliper seal.