check out maha Powerex MH-C204 +2700 mAh batteries(slightly expensive).Always try to buy aa's with higher numbers so that they last long.Sanyo eneloops are also recomended in this site by many members.
Any 60x 2 gb card will suffice for video and continous shooting.
Nikon D40,
Nikon TC 200
Vivitar 28-80 AIS
Nikon Micro 55mm AI 1977,
Nikon 50mm f/1.8 E AIS 1979,
Nikon 300mm f/4 ED IF AIS 1982.....