To answer all the questions:
175g for the tire
220g Tube - Bontrager slime type - I commute and this saves my bacon.
241g cassette
10.88g nipples
24g spokes
525g rim
450g hub

There was post here about an article on Sheldon's website about aerodynamic wheels and the myth that they are better fundamentally. I was curious to see how my DT Swiss Straight gauge 32 spoke, RX-100, CXP21 rim held up in the grand scheme of things.

If I=0.1749 then my rear wheel falls in between the Mavic Cosmic Expert and Cane Creek Crono. Yes the article is old as are the wheels. Since I am in the market for a better set of wheels I thought I'd start here and see where I stand.

I think if I shed between 300 and 600 grams off the back end it would improve my climbing and overall speed. I can stick with a box profile on the back because the seat post and bottle cage will deform the air enough. I could use drive side aero, but I don't think that would be reasonable.

I can do the same with the front and possibly use a deeper section rim with an insanely light hub with radial laced aero spokes, thus turning my front into a semi-disc. Basically I am trying to maximize my money and squeeze some blood from a turnip. I know it can be done.

@Jeff - That is problem I am having now. My rear wheel brake track has a dip and dive in it and will need to be replaced soon.