CSS - tidy up, shorthand, compress

Hi I need someone to help clean up the 3 CSS pages of my site - [login to view URL] (10 HTML pages) Primarily, the CSS is long winded and can be cut down to shorthand size in order to help speed up download times. I also need the images to be written into CSS as background rather than as HTML. I also think that some parts of the HTML can be cleaned up. Regards Sam