I passed my BSCI today. I also have passed the BCMSN exam. I have a little under a year left to take the ISCW and ONT so i was looking at possibly taking the ARCH 642-873 exam to get my CCDP to extend it to 3 years. Does anyone know where i can get some books for the 873 exam? Cisco press have been the best study materials for me but they only have the 871. any suggestions? One more question, if i do get my CCDP that will give me 3 years to pass the ISCW and ONT right? Of course i do not plan on taking that long but i may feel like i'm rushing if i try to get them within 1 year. Also if i do get both Professional level certs, in order to renew i can take ANY professional level exam to renew both certs right?