Time for the Service Provider track.

I have changed field to the service provider market. Currently I am working at a triple play provider named Altibox. I have to recertify before 15 oct 2010. So why not do the written SP? I got permission from my boss at home to do this(my girlfriend), if I do it in small amounts and most in the working hours. So my plan is to start early at work and use 1 hour of the working hours. I feel I can take 1 hour without bad conscience because most of what I learn is relevant for the service provider business. There is a big difference between enterprise and service provider so I have to learn it anyway(MPLS/VPN etc), why not do the CCIE way?