Your list looks very good so everything below is just nitpicking if you want to save a few more ounces. I think you'll be happy with everything you have though and you're way ahead of where I was when I started hiking.
Yet another vote for zip off pants especially in warmer weather. I've done the shorts/wind pants thing and it works ok. I've started wearing pants year-round when I hike here in Missouri because the ticks are pretty bad. Sometimes its just too hot to be comfortable in windpants.
I've been looking for a decent, cheap shell mitt to wear over liner gloves for years. If you find something light that doesn't cost $40 let me know :)
We've just recently started having to worry about bears in Missouri so I still just hang my food in a regular old stuff sack. I'm going to start using an odor proof sack too just to be safe.
Any old waterproof watch will do. Timex Ironman watches work fine.
Can't comment on trekking poles. I've been using a pair of Leki Ultralites since I started hiking. They're 15 oz for the pair and one of the lower sections is bent but they just keep going. A pair of CF poles sure would be nice though.
Personally I take either my windshirt or my Driducks rain jacket on a trip, rarely both at the same time. The windshirt is lighter and more packable so I bring it if I don't expect anything but a freak, short shower, but the Driducks are breathable enough that I can use it in place of the windshirt even if its not raining.
I just got my first cuben fiber stuff sacks this week and they're awesome. If you want to spend a lot of money to save a little weight I highly recommend them :D Cuben fiber is really, really cool though.
Does the weight of your Caldera Keg include the fuel? That seems pretty heavy for a beer can outfit. My kitchen kits weighs less than 6 oz and I'm using a SP Trek 700 mug.
Use Aquafina or Gatorade bottles, they weight a little over 1 oz a piece in the 1L size.
Reevaluate your first aid kit, 7 ounces is a bit much especially if you're hiking solo. Make sure you actually know how to use everything that's in it too.
A Lightload towel is around 0.5 oz, even my MSR Packtowel only weighs 1 oz. About the only thing I use mine for is drying my feet and wiping condensation off my tarp so it doesn't need to be very large.
Adam