I don't know how many black SVT's they made in '00, but when my Dad wanted a Black SVT in 1998 he couldn't get one. We went to Huntington Ford, one of the largest volume SVT dealers in Metro Detroit, a place where we had previously purchased 9 cars, and they couldn't find us one in 9 states. We took a T-Red one instead. When we went to trade it back in they had two '00 SVT's a T-Red one and a Black one. They wanted 3K more for the black one because it was more "rare" as the salesman put it. So I would say that it is worth more than a silver or red one in similar condition. It is definately worth less than a tropic green with a tan interior SVT because they made so few of those. If you really want to know what it's worth use the
Edmunds auto value calculator, it takes into account color when figuring your cars resale value.