Images.

I may have been a bit generous with the space but it is for the best. Also gives you the option of using a slightly larger notebook in there later if needed.

http://i43.tinypic.com/2dazvdc.jpg

http://i44.tinypic.com/30j41g2.jpg

http://i42.tinypic.com/29mu6fa.jpg

Try not to go smaller with the height though, you need enough room for fingers and to open/close the display. (13" was based on lid straight up with a bit of space)