Hello Guys,
I am currently preparing for GCIA Sec 503 exam.I am taking the help from TCP/IP Illustrated (which is the best book as per majority of people) and also working on learning tcpdump and trying to improve on analysis of intrusion events.
I am not that financially strong. Hence i am taking the challenge exam path from GIAC which costs 900$.
That money also i would save for sometime and then collect so you can analyze my financial position.
I have 2 years of IT Experience in Active directory, Messaging and Information security (Present).
I have a bunch of certs like MCSE+Security,CCNA,CCNA Security and CompTIA Security+ which i have given by pure hard work and studies.

However i am a little concerned. What else should i learn and how else do i improve my knowledge?? I really wish to do very well in my first attempt of GCIA.
Hence please help me and any valuable feedback would be highly appreciated.
Thanks a lot