Loosen and remove the bolt with the torx bit. There is nothing to take off on the other side, it's basially just a "pin" and the caliper will slide backwards (toward the car) and off once you've removed the torx bolt. Don't unbolt the brake line. Leave it in place and suspend it from the inner fender with a zip tie or piece of wire. Don't let the caliper hang by the brake line - it's not good for it.
As mentioned above, you'll need a c-clamp to compress the piston back into the caliper. Try to "center" it on the piston and back of caliper to distribute the load evenly and prevent the piston from galling on the caliper. Inspect your seals to make sure they're okay. This is a good time to check your brake fluid as well to see if it's old and very dark.
Once the piston is compressed, just reinstall the new pads, and place the caliper back into the anchor, then bolt it in place.
Check your brake fluid level - you'll likely spill some when you compress both front calipers. Add more as necessary. Spray brake cleaner on your rotors to ensure you got all the remaining grease/oil off the rotors, and put everything back together from there.
Very easy. I'd get a Haynes or Chilton's if you'd like more in-depth instruction and pictures.
Paul.