Listmania!
Nikon D90 Startup Outfit
By an Amazon.com customer
Nikon D90 DX 12.3MP Digital SLR Camera with 18-105mm f/3.5-5.6G ED AF-S VR DX Nikkor Zoom LensNikon D90 DX 12.3MP Digital SLR Camera with 18-105mm f/3.5-5.6G ED AF-S VR DX Nikkor Zoom Lens
Buy new: Too low to display / Used from: $999.00
If you don't own a lens to begin with, the 18-105mm VR is a decently sharp kit lens. You'll grow out of it, but it gives you a wide-angle to zoom range that is actually useful!
Nikon 35mm f/1.8G AF-S DX Lens for Nikon Digital SLR CamerasNikon 35mm f/1.8G AF-S DX Lens for Nikon Digital SLR Cameras
Buy new: $199.88 / Used from: $195.00
DO NOT SPEND MORE THAN $300 for this. For the money (~200 USD) this is a SICK lens. Fast, quiet, sharp, beautiful, decent bokeh and a great low-light normal prime for the DX camera. Yes, its not a f/1.4 or f/1.2 but who cares when the D90's ISO 1600 looks better than most other DSLR's on ISO 400!
EN-EL3e Replacement Lithium-Ion Battery for Nikon Digital SLR D700, D300, D200, D90, D80 Digital CameraEN-EL3e Replacement Lithium-Ion Battery for Nikon Digital SLR D700, D300, D200, D90, D80 Digital Camera
Buy new: $18.69
never used these 3rd party batteries, so don't quote me. I am simply saying you should buy at least one extra battery so you can shoot while the other is charging.
Sandisk 8GB EXTREME III SDHC SD Card Class 6 (SDSDX3-8192, Plastic Case)Sandisk 8GB EXTREME III SDHC SD Card Class 6 (SDSDX3-8192, Plastic Case)
Buy new: $29.50 / Used from: $29.99
for 30 bucks and change, these things are pretty good value. Splurge for the 16gb if you want, but the 8gb will let you shoot 400+ pictures in RAW, and over 2000 in jpeg.
Nikon ML-L3 Wireless Remote Control for Nikon D40, D40x, D60, D80 & D90 Digital SLR CamerasNikon ML-L3 Wireless Remote Control for Nikon D40, D40x, D60, D80 & D90 Digital SLR Cameras
Buy new: $15.14 / Used from: $15.00
You'll need to be within LOS of camera with this, but for the price, no brainer.
Nikon SB-400 AF Speedlight Flash for Nikon Digital SLR CamerasNikon SB-400 AF Speedlight Flash for Nikon Digital SLR Cameras
Buy new: $114.10 / Used from: $98.87
Okay, this isn't a big daddio flash but for the money, it gets the job done until you are ready for strobes and off-camera flash.