Will this be enough for study material?

Just knocked out A+ yesterday and moving on to Network+, I have Mike Meyers Network+ -005 book and supplementing that with cbt nuggets and professor messer vids. I think that should cover it but I wanted to be sure, any type of labs I should have? I have gns3 but havent messed with it and I'm not sure it would do much good at my networking experience level anyway