If you are lucky enough to have an Ikea close by, then you must know about the Billy Bookcase system they also have that works well with the cd tower system (link below). For very little cash you can easily customize your sewing space into an area you won't ever want to leave! I not only use the CD Towers, the Billy Bookcases, large desk top with customized bases, but also have their cube system called Expedit....also available at Ikea. Check out their online catalog. You'll be making up your wish list for NEXT Christmas once you see all they have to offer!! (and no, I do not work for IKEA!! lol!!)
http://www.ikea.com/us/en/catalog/products/07305310/