Dear All, I have placed the very preliminary version of the presentation at: http://www.phenix.bnl.gov/WWW/p/draft/t_sakagu/JPS_Symposium_2001_ver0.2.ppt There is also "JPS_Symposium_2001_ver0.2.htm. They will updated much more later. At least on Physics motivations, and some busy stuffs. I would appreciate for your comments. Sincerely yours, Takao Sakaguchi