It's pretty easy.
You just need to get the calipers off to replace the pads. Two caliper slide pins are all you need to get off. They are the ones inside the rubbery/plasticy bushings that stick out the back of the caliper with the caps on. Pop the caps off and remove the pins with either a T45, T50 or 8mm allen, depending on what you car came with. Remove the caliper spring from the front, pop off the caliper.
To get the new pads on, you'll need to retract the caliper, so take the cap off the brake fluid reservoir and use a c-clamp or large adjustable pliers to push the caliper piston back in. Put the new pads in and put it all back together. Pay particularly good attention to how the caliper springs were attached -- almost everyone gets them back on wrong and you'll have no pedal pressure if you do.
The rears are a little different -- just don't try to push the piston back in -- it requires screwing them back in with needle nose pliers.
Ask questions if you need.
-Lance
