Bratmantlz is right. Getting those spark plug wire boots off is a biatch!!! I pulled two of the electrodes right out of the boot when I did mine. I had to use a pair of pliers to get the electrode off of the spark plug.
I assume the dealership that did my 30k mile service didn't use any dialectric grease. The rest was REALLY easy. So, be prepared to go to the dealership and buy an ignition wire or two, and use a bit of dialectric grease on the plug boot to prevent a stuck electrode the next time around.