Hey guys, first time posting here but have been reading for a little while. I've started wanting to get away from the 40lb backpack and 4lb boots as frankly it can (and has been) an ass-kicker when it comes to getting out into nature. I'm also trying to do this somewhat frugally (although that seems to be somewhat an oxymoron with some of the gear out there) and would like your opinions on what I have as well as with what I should purchase or at least look at.
I haven't gotten into doing any extended trips; usually I just end up getting out there on a long weekend with my camping buddy. I would like to do longer trips, but between my work schedule and the like that isn't too likely to happen. I'm thinking 4 days would probably be the max at the moment. For what it's worth, I live in the Seattle area of Washington state, so when it's not raining it'll likely start at any moment.
On to the gear list!
Backpack: REI Flash 18
Sleeping bag: Big Agnes Pitchpine 40deg SL // Sea to Summit Thermolite Extreme Mummy Liner
Cooking: Backcountry Titanium 700ml pot // Esbit folding titanium stove // Jetboil plastic spoon
Clothing: Marmot Precip Jacket // REI Convertible Pant // REI Revelcloud Vest
Shelter: GoLite Den 2 Shelter
I've also got some other odds and ends; Adventure Medical .9 Kit (I think that's the one), Petzl TacTikka Headlamp, the 10 essentials. Some stuff I'm looking for as of now is long underwear (I'm on the fence with Smartwool ($$) and something like the Capilene that Patagonia has); a hat to wear while sleeping; shoes (I was thinking of getting these at Nordstrom Rack as they tend to have some nicer outdoor shoes on occasion).
I realize my backpack choice may be less than ideal, and am open to suggestions on an alternative. I ended up with a $450 gift certificate for Backcountry.com so most of my purchases would ideally be from them or one of their other sites.
Thanks guys!

