Sigma 70-300mm f4-5.6 DG APO (Nikon, motorized) for $204

If you don't want to wait for the $500 OS version, Sigma is offering their 70-300mm f4-5.6 APO (motorized) lens for the Nikon mount for $204 with free shipping, sold and shipped by Amazon herself. This is a full-frame lens so you can use it on both your film and digital SLRs. Obviously on the DX dSLRs, you have to do the 1.5X equivalency math (105-450mm-eq).

Please note this lens does not have image stabilization!