The Minolta 7000i has a wide-area autofocus sensor and supports Minolta's Creative Expansion Cards, specifically, the A/S Mode expansion card allows aperture priority and shutter priority.
The 5000i uses Minolta's second generation wide-area autofocus sensor, giving single-shot autofocus including predictive autofocus on a moving subject; continuous AF is available with the optional Sports Action expansion card. 
