I've thought of getting CCNA etc but the fact that you have to redo it all after 3 years kinda turns me off. It takes at least 3 years just to get there. I've never been good with tests, I do better at actually doing hands on stuff. When I was in college our course was based on the CCNA curriculum. I would bomb the tests, but do really well on the hands on projects like configuring the routers, switches with routing protocols, trunking etc.. The trunking and vlans was pretty interesting actually, I really enjoyed playing with that.