http://www.rei.com/product/854045/rei-trail-25-packSide compartments, not too cheap, comes in black for your tacticoolness, and good for a day hike. I own the larger 40 one that REI sells that I take out for 3 day hikes.
Or if you really want:
http://www.kommandostore.com/surplus-in-stock/ilbe-assault-pack.html$25 for a beat up bag used by the marines that smells bad, missing straps, and take awhile to get shipped out to you. I ordered one and use it as my range bag. Alternatively I fill it with weights and work out with it because it's cheap as hell and I'm not afraid of it breaking.
A bag is not a good bag until you know what you're going to use it for and what you're going to put into it. And don't skimp on your bag. Last thing you want is for your crappy constructed bargain bag to rip on you 50 miles in the middle of nowhere with all your supplies.
