Whew, Im glad that's over with. Scored 937. Started studying almost two years ago, and then I got called up (USAR) to serve in Iraq October 2004. Spent a year there starting December 2004. For the last three months, I've been studying and relearning everything again.
I read the Sybex 640-801 4th edition from cover to cover, taking notes on everything. Todd Lammel's chapter on subnetting is wonderful-- it made everything clear. You really need to recognize subnets fast during the exam.
I supplemented Sybex's OSPF by going back to the Netacad module on OSPF (Sem3), and NAT by going to the Scaling IP addresses module (Sem4). I also read the VLAN Module (Sem3). I reread most of the other modules as well.
Transcender was harder than the test. Really gets you into the groove of answering questions in a test taking format. It also nails down your weaknesses and forces you to go back and study the subject(s).
Routersim was pretty good for practicing routing protocols, but for VLANs, hands-on real switches I think is a must, since Routersim doesn't include a few troubleshooting commands like "Show interfaces trunk" or "Vlan Brief." Know how to configure VLANs and troubleshoot them.
I had the OSPF sim configuration and lost alot of time figuring it out, but I eventually got it to work. You really have to know what you're doing.
I also studied/practiced Frame-Relay in detail thinking I might get a sim for it. Configuring LMIs, Interface-DLCIs, Frame-Relay Map, Frame-Relay in Multipoint, Frame Relay in point-to-point, Frame Relay while using OSPF, etc. I was almost disappointed not to get a sim on it, if there is one.
Finally, you also have to know everything else. Maybe except ISDN. I was actually worried about ISDN and DDR since I hardly spent any time practicing it.
Materials I used:
Sybex Todd Lammle CCNA 4th edition
Cisco Networking Academy
Transcender
Routersim
routers and switches from ebay
Old unwanted PCs I've gathered and from family/friends, a dumpster, a parking garage, etc.
Here is my home lab, using a PC box as a wireless router to access from my laptop. I also played around with Linux Quagga (aka Zebra) for a little on the wireless PC box. Quagga is a program (with RIP, RIPv2, OSPF, ISIS, BGP routing daemons) which closely emulates Cisco IOS CLI when making a Linux PC a router.