2 Things I want in CSS 3

I've done some html/css restyling lately and there are some things I would like to see added to CSS 3. The process to request some changes to be incorporated into CSS 3 is a bit overwhelming to me, so I just post them here and hope they will be picked up by someone.

CSS variables

CSS variables would be nice. I want a way so I can easily change all colors in my CSS with one adjustment, not by searching for the color in the file and replacing it with the new value. I also think this would increase readability of the file.
This would allow to define recurring parts of the layout in the CSS file like this:

var backgroundcolor : #FFFFFF;
var border: 1px solid #CCCCCC;

.container {
background-color: $backgroundcolor;
border: $border;
}

.navbar{
border: $border;
}


Path variables

If I could rename a path selector to a variable, I could remove a lot of classes from the html and still be able to easily change the css.
Take this example:

.navbar ul li a {
text-decoration: none;
}

.navbar ul li a:hover {
text-decoration: underline;
}

This would become:

var listItem: .navbar ul li;

$listItem a {
text-decoration: none;
}

$listItem a:hover {
text-decoration: underline;
}


These examples look simple, but my experience is that a lot of the same values can be found in many CSS files. Wouldn't it be nice if we have a block of variable definitions at the top so we only have to specify once that the color of all borders should be changed?

This would also make it easier to let users (on a blog for example) override the colors with their own stylesheet, which overrides the variables with their settings.

The only way I know off to achieve this at the moment is by generating the CSS with a templating framework like JSP or Velocity (or why not PHP), but this seems like overkill to me.

So, anyone with the power to move the W3C board, go on (and let me know of the results)!