I have 3 packs now and by far this is the best.
http://www.backcountryedge.com/deuter-a ... 65-10.aspx
It's from a well known German company tough, comfortable and lightweight. I've used it for over 150 trail miles and love it. It's also affordable. My only complaint is it doesn't have many pockets. I use various stuff sacks and dry sacks to organize gear into the main compartment.
As far as sleeping pads go they are worth the extra weight for a good nights sleep. I have the Big Agnes AIr core. It's comes in long length as well which is perfect for me at 6 "3.
If you need a stove you may want to go with a liquid fuel as it may be more plentiful and easier to find than replacement canisters.
Down sleeping bags can be the most compact warm sleeping bag. The only downside is keeping them dry. If they get wet they are a b**ch to dry so get a dry compression sack from sea to summit. In my experience the temp ratings on bags are skewed add 10 deg to sleep comfortably. So if you have a 15deg bag expect 25 deg to be lowest comfortable non freezing sleep. I usually take my 15 degree bag in early spring and late fall/ winter. This march temps dropped with a wind chill of 20 degrees and lets just say my feet were getting cold in that bag.
Backpacker magazine has a lot of useful information on their site.
Hope this helps. Let me know of any sights you were planning on seeing.