I like to buy multi-purpose stuff. I need a backpack for camping that also can use for everyday purpose in the city, don't like it to look like a camping backpack, ie: I could use it to go to a customer meeting, because I travel with it to some cities for direct support, and not looking like I will setup the camp tent there . Good quality - I don't wanna to buy another next year!- In the range of US 50-150. The main purpose is that work for camping and hiking, something light (<=2 days). I'm 1.8 mt tall. Climate is 15-35 celsius in my zones.. Can store a 13" macbook. I look at http://www.amazon.com/Maxpedition-V...F8&qid=1349633058&sr=1-3&keywords=maxpedition but have a hard time understanding how big is it, I don't wanna it to small or big like the traditional camping Backpack.