Hi /out/, newbie taking gear advices here.

I'm going to buy my first tent and backpack (until now I borrowed my father's equipment, or went with him), is this tent okay ? I don't really have much more money to spend on it :
http://www.amazon.fr/Coleman-Crestline-Tente-deux-personnes/dp/B0030BG9ME/
Also, is a military backpack, coming from a military surplus a good deal ? Something like these :
http://www.lesurplus.com/equipement-militaire/bagagerie-militaire/sacs-a-dos/sac-a-dos-militaire-operator-toe-100-litres.html
http://www.lesurplus.com/equipement-militaire/bagagerie-militaire/sacs-a-dos/sac-a-dos-elite-65-litres-en-noir-vert-kaki-et-en-camouflage.html