I just swapped my cam out Monday and it was a snap. No need to take the A/C condenser out, it will clear just fine. Just take the radiator out, and the front of the engine like the instructions tell you and you will be home free. Make sure you have a tool to hold the lifters up, either the magnets or a lifter lock style tool. I used magnets and still put something in the hole in the front of the motor for extra insurance. You DO NOT want to drop a lifter, it will be a heck of a headache to get it back! let me know if you have anymore questions.
AKA 02PewZ71
Can't call myself 02PewZ71 anymore, my new name is Haulinbass02 (dieselplace.com)
My new baby: '02 CC/SB 4x4 2500HD
DURAMAX (LB7)/ALLISON
Got an intake and Magnaflow exhaust for it now