the 80-200 2.8 D is outstanding. hands down the best lens you will get for the money. It is an older design and not the fastest focuser, but a delightful lens equal optically or superior to the 70-200 2.8.
the Sigma 70-200 2.8 is an outstanding value, near your price point.
the rest of the super zooms, w/o a fixed 2.8 are, in my mind, garbage. they are great shut down, but they start out so slow it kills shutter speed in the end.
spend the extra $200 now and buy a lens you can always use. it may be push-pull and slow focus but it will not let you down and will be part of your system. the other options will be replaced, if you stay with photography.
the Sigma 70-200 2.8 is an outstanding value, near your price point.
the rest of the super zooms, w/o a fixed 2.8 are, in my mind, garbage. they are great shut down, but they start out so slow it kills shutter speed in the end.
spend the extra $200 now and buy a lens you can always use. it may be push-pull and slow focus but it will not let you down and will be part of your system. the other options will be replaced, if you stay with photography.