I will be removing my airbox in a little while to install the CAI. Are there any nasty problems that I will run into? Also other posts I have read mention moving the PCM. Will this step be neccessary for my car?

Nope, not required. Your PCM is under the passenger side kick panel

You'll need to lengthen the wires that go to the IAT, if you want to have it reach a K&N filter at the end of a CAI pipe. That'* about it.