Hi, I'm new to the DSLR line of cameras and I think I"ve settled on the Nikon D40. And I'm interested in the kit below but would like to know a little more about the recertified by Nikon thing. any help? still warranted? INKD40KRA Nikon D40 Digital SLR Camera Kit Outfit, w/ 18-55mm f/3.5-5.6G ED II AF-S DX Lens - Recertified by Nikon U.S.A. w/4 GB SD Memory Card, Spare EN-EL9 Lithium-Ion Battery, Lowepro Holster-Style Case also, if I wanted to extend my focal range a little would you guys recommend getting 18-55 and 55-200 with VR or just one 18-135 lens?