looks awesome! isnt it great to have a resource such as BPL and books from experienced hikers like Dr. Jordan?
the list, like any is subject to critique. allow me to add my 2¢
gut the Jam pack. you will use your Prolite as a pack frame, either folded or rolled concentrically. You can save 5oz by cutting out the hydro sleeve, the foam pad and some other redundancies. Put the Platy 2L in the side pocket where it fits nicely and buy the Platy hydro kit (cap and hose assembly, $12)
you may ditch the Patty pants and wear the Reed pants. If I understand, the Reeds are fine in warm and dry weather too. I may be wrong.
it is sometimes beneficial to consider your 'pack' as a stuff sack. (after all, thats what it is) and forget all the 4oz of stuff sacks. bring one for your food. you can push your sleeping bag/quilt into the bottom of pack and let it fill in all the gaps. this is preffered, and widely used practice.
if you tarp, you likely need those poles. however, 2 things: first, carbon poles are sometimes cheaper than their heavier aluminum cousins. I snagged a pair of fixed Life Link (great reviews of them on this site) for $45 online.
second, you wont notice much weight difference between the $260 cuben tarp and a $90 sil tarp. My sil tarps were averaging 7oz.
a Black Diamond ION headlamp is an example of a cheaper, lighter alternative. Almost as bright, but only 1oz.
cookpot: imUSA from walmart is $3
spoon: plastic from Wendy's (free)
you dont have to pay retail!!!
if you dont have trip plans until '10 you have plenty of time to shop sales, explore alternatives to $$$ (like the tarp) and buy used from BPL and other forums. I could easily drop your list from $1000 closer to $600. And so can you. peace, mike