i used a long torque wrench set to like 60 pounds. mine were frozen on as well.
Soaked in PB and kept at it with my torque wrench, eventually the bolts gave.
The rotors are seperate from the hubs, you don't have to worry about replacing the bearings.
use a rubber mallet if the front ones stick.
The rear ones are a little different, you will notice the rears have 2 threaded holes on the inner part.insert a long bolts into these holes, make sure your parking brake is disengaged, and turn the bolts slowly and evenly into the rotor. this will pop off the rear rotors, they stick because of the parking brake(drum brake shoes)
once you have the rotors off inspect the wheel bearings make sure there 100%.
Inspect your brake shoe clips, clean everything really well. inspect your parking brake shoes for wear also.
then it should take you less then an hour to reassemble. the main brake parts.
Replacing the brake lines is another story, i went through hell replacing them on a different car. soak everything in PB, and make sure you use a REALLY good flaired wrench set on them. expect it to take a long time, and be really careful to hand thread everything back together. before you clamp everything down. clean everything really good and try to dry everything up so you can see leaks easier.
Inspect the Rubber covers on the the caliper float pins make sure nothing is dry rotted or ripped. remember to re-lube the caliper float pins with disc brake grease.(high temp grease)
When you finally get the rims back on, make sure you torque them to around 100 pounds, don't use an impact wrench or over tighten the lugs.
here this when i redid my brakes:
http://www.cardomain.com/ride/2614351/2