It's 2010, not 1965. Louisiana and South Carolina both have a minority Governor/Governor-Elect. The President is black. Those provisions of the Voting Rights Act have run their course. Its only purpose now is to automatically keep incumbents in power in heavily Gerrymandered districts - which is a bad thing.
It doesn't matter what the race of those Governors are, they could very well be capable of diluting minority voting strength for partisan reasons. There are strict regulations in place for a reason, because some politicians cannot be trusted to be fair, they have to be checked by the law. Just because the President is black doesn't mean the Voting Rights act should be thrown out.