Forgive my breaking the diary rules with three in a row, but I hadn't seen these Insider Advantage polls before;
here's SC
Insider Advantage
An Insider Advantage/Marketing Workshop poll; conducted 1/28-29/04; surveyed 500 likely Democratic primary voters in South Carolina; margin of error +/- 4% (release, 1/30).
Here we actually have trend lines (from 1/24-1/26)
Edwards 25 (20)
Kerry 18 (14)
Clark 17 (10)
Dean 9 (10)
Sharpton 5 (4)
Lieberman 3 (2)
Others 3 (n/a)
Undecided 20 (36)
Another with Edwards well in the lead! And Clark nipping at Kerry's heels ...