Newegg has 11 different burners that support lightscribe. Just compare prices and reviews there.
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007589+600029981&QksAutoSuggestion=&ShowDeactivatedMark=False&Configurator=&IsNodeId=1&Subcategory=5&description=&hisInDesc=&Ntk=&CFG=&SpeTabStoreType=&AdvancedSearch=1&srchInDesc=