Network+ would be great to get before your CCNA. It covers the same basic theory that will be covered in the CCNA. Although I haven't seen many companies ask for these certs (CompTIA that is) they do bring a bit of respect to your knowledge. The CCNA I haven't taken yet (hopefully this month, or the next), but without some Cisco routers and switches, you will probably make the test harder on yourself. From what others have told me, you will get questions asking "What command did this output come from" which are usually "sh ver", "sh flash", and "sh int <device>" outputs. Another thing was the virtual lab portion of the test. Self-explainitory. You setup a group of routers/switches through a virtual lab. Another big one would be routing troubleshooting, where they show you the output of routes, and having to tell where the problem is. Sounds easy, but if you don't know your ADs, you might screw yourself.