Css and spacing

http://camdmachining.com/ 3 questions: 1- Would like to reduce spacing in the footer area and below content area. Seems there is a 1/2 above and below the AERA logo that I would like to lessen. 2- Any way to have the 'No sidebar' layout option be wider? 3- Can the banner be a full width image rather than just the logo in the left? Thanks!