I passed the test today (v4)

My advice to you is to try to get hold of the actualtest or testking questions. They did really help. They prepare you for the depth of knowledge you should be pursuing for the test. I still feel a like hacking newbie.
Also browsing around this forum has helped me, and toying around with nmap,netcat,nessus and wireshark.
Good Luck.
PS Don, I also took your advice of getting a fair amount of sleep, Thanks!