There is a used book store nearby that is selling quite a number of Cisco training books - routing, IP, etc. I looked on the back cover, and they would regularly retail for anywhere from $80 to $100 CDN, but of course they are used so they go for less - like about $2.95 each... I am not really up on how networking stuff changes and at what rate it changes, but these books are only about 4-5 years old. Are they way out of date, or what? Either way, the price is pretty darn good, and I might buy a few, but I was curious as to whether or not they will basically be the same as the ones that are new in the store right now.