Hi, I have decided to upgrade to a Nikon D300. I primarily shoot sports/ news photograhy and need the speed for stadium lighting without flash. I am considering the Nikon 18-200 mm as the initial lens. But I also shoot my share of portrait shots. Do you think it is fast enough. I am also considering a 400 mm sigma for telephoto and wonder if a list member has any experience or recommendations with this equipment. Another thought would be to try a doubler with the 18-200 Best Regards, Rob Merchant Digital Media Magic LLC Nazareth, PA http://mysite.verizon.net/dmmagic/show01302007.htm Rob Merchant Digital Media Magic LLC 4512 Foxtail Drive Nazareth, PA 18064 610.759.1627 home 610.759.5189 office 908.419.2062 mobile mailto:rwmerchant@xxxxxxxxxxx http://mysite.verizon.net/dmmagic/show01302007.html