FWIW - I tried ULINE steel shelving. I went to Home Depot, bought good quality wood planking, cut it, stained it, and placed it on the the steel shelves. The project was economical and accommodated all of my stereo equipment and two shelves of LPs.
http://www.uline.com/BL_3921/Black-Wire-Shelving#72wire
http://www.uline.com/BL_3921/Black-Wire-Shelving#72wire