thanks for the info about bleading the line. now my next questions:

1) how do i really crank down on the caliper bolts? its not a very large space, between the caliper bolts and the rest of the wheel/tire housing area.

2) what tool do you recommend? ive heard breaker bar, ive heard pipe fitting over a ratche, ive heard box end wrench over the end of a wratchet. which has worked best for you? i only want to purchase one new tool if i can help it.

3) when i finally get this all done, and the new calipers on, how important is it to actually set the torque?

thanks!