One outfit I've had good luck with is Amron Intl, I see they have the Kelty MAP 3500 3-day pack on sale for $99 with free shipping (boa green color). The MAP is the COTs version of whatever it is they build (or built) to mil-spec. I used that pack as my everyday dayhike pack this summer and it is legitimately comfortable, roomy and bombproof. A good deal at $148, a steal at $99.

http://www.amronintl.com/diving/products.cfm?id=631