Well I've done the A+ a few months ago and I have to say it was very interesting going through the books and the exam, a great refresher! I had worked in the past as an IT Technician for 5 years before taking exam.
Now I'm going to sit the N+ in the next month or two. I've got the "All in one, Network+ Certification" book by Mike Meyers of course and I'm thinking how hard is this exam really? I mean I supported a small work group Ethernet and 802.11b (at the time) running 9x, 2000, XP and a Red Hat file server during the entire time I was an IT Technician without any problems. I've no doubt I'll learn a lot from the book but just thinking how difficult will the actual test be?