The only thing I would change with the layout is to not set the table width at 100%. Define the width and you have more control of the look. Set at 100% it will display as wide as the browser window. I have a very wide desktop here (two monitors) and can make that page look pretty darn strange as it stretches out.

Your standard monitor is about 1280px. If people are viewing screens at the full window, that's as wide as they can see. Anything set wider than that will call for sideways scrolling. A lot of people use multiple windows and don't put them out to the full monitor, so I tend to keep my tables somewhere between 800 and 1000 pixels wide to accomodate that (since that's how I browse). Or you could simply set it smaller by saying 80% or 90%, etc. The main thing is that while people will scroll up and down, they are generally not happy scrolling sideways.

SRS