Back pack needs more information to narrow down suggestions. What kind of size (volume) are you thinking of. How many days out do you see yourself camping for? Honestly, I have a 70L pack that I thought was the bees knees when I bought it and now I can't ever see myself using that monster anymore. I love my Falcon II maxpedition but it is more of a daypack/overnighter than a 2+ day multi-nighter. I think a 40-50L would be better for multi-night camping.
Wetterlings - well you want one....Also consider a Brian Andrews Modified Hudson Bay Camp axe for just a tad more. Brian puts a mean edge on it and really optimizes it for chopping. His mods are well worth the extra $25 over the wetterlings IMO.
Good choice on the nalgene/GI cup. Very versatile. You are a male, so let me give you advice and don't worry about the whole BPA thing. You can pick up the older ones for almost nothing. Just be sure to grap a wide-mouth version rather so that later if you choose to get a water filter it will work with it. There are also coffee filters and other widgets that hook onto the standard wide-mouth versions.
Tarp - the one that Spooky posted is a good one. Heavier than Silnylon, but comes at lower cost and unlike silnylon, can be used as a ground cloth. Silnylon apparently doesn't wear to well from friction when used as a groundcloth due to its ultra-light weight nature.
First aid - check out the PSK thread for good ideas (about page 2 or 3 now in W&SS). For winter - consider the AMK heatsheets thermobivvy for $30. You also want a couple of the large AMK heatsheets emergency blankets - great ground cloths or makeshift tarps using the monkey fist tie holds.
FAK - Polysporin tube, bandaids (different sizes), sterilized gauze pads, sergical tape, fine tip tweezers, aspirin, sugar packets/mento's or mints, steri-strips or crazy glue, antihistamine tablets, rollaides, immodium (pack of 8), water treatment tablets, small notepad and golf pencil, triangle bandage, safety pins, alcohol wipes.