Six Moon Designs Starlight or Traveler, with the "optional" stays, will carry up to 35 lbs. easily. However, unless you can reduce bulk it might be too small.
Looking at your list, I can't really see where your bulk is coming from–even the tent isn't that bulky. My gear, not a whole lot different from yours except the tent, just lighter, fits into the Six Moon Designs Comet, a smaller pack–even when going out for 7 days I don't have to use the extension collar,
The BA pad, suggested as a saving, is far less bulky than a closed-cell foam pad. Weight could be saved by going to a 3/4 length POE pad (17 oz.) or (if you have $$$ or a coupon) a Thermarest NeoAir. With the Six Moons Starlight, your tent could go in one of the long outside side pockets (that's where I carry mine). However, unless you regularly go with another person, or, like me, have a largish dog, you could find a much lighter and more compact solo tent, like a Tarptent Contrail or Sublite Sil. Tarptent's Squall 2, also a 2-person tent, would still be a weight savings over the Double Rainbow. You could consider a Montbell Thermawrap jacket instead of the fleece for more warmth and less bulk (watch for sales online, and note that the sizes run small). Ditch the plastic trowel, they are completely useless when the ground is dry. Use tent stake, trekking pole point, your boot heel. Re the JetBoil, even a simple canister stove plus lightweight pot are lighter and more versatile.
As mentioned above, you seem short on insulation. A cap (fleece or knit) is vitally important since you lose a lot of heat from your head. ("When your feet are cold, put on a hat.") Gloves are also a good idea–you could use spare socks, but once they get wet you have no dry socks!
Tom, he can't ditch the Nalgene since he uses a Steripen (useless gadget, IMHO, but YMMV). The Steripen sounds really light, but by the time you add the required heavy and bulky Nalgene and the very necessary extra batteries (not listed, I notice) it's as heavy as the lighter filters. Dave, be sure to carry some Katadyn or Aquamira chlorine dioxide tablets; the Steripen has been known to fail in the field (check reader reviews on this site)!
