removing steering wheel with airbag

My windshield wiper switch quit working the other day and needs to be replaced. This is the combination switch on a stalk that controls the turn signals and high-beam as well. To replace it I have to remove the steering wheel which is equipped with an airbag, and that makes me nervous. I have the service manual on cd and it gives what looks like complete instructions for the procedure, but I'm still wondering if I should try it. Any experience with how easy or difficult this job is? What are the chances that I'd blow the airbag and end up with a much bigger bill than if I had taken it to a mechanic in the first place?

Thanks,

Bill Balmer