Unfortunately, even if we do have one (I'm not sure if Georgia has one or not), her district leans SO far to the left that there wouldn't be a snowball's chance for her to get recalled in a popular vote.
The only shot that we've got is her opponent in the July Democratic primary, former Georgia state court judge Denise Majette. Majette is a black woman who caters to McKinney's core constituency - poor & middle-class blacks in south DeKalb County, intellectuals around Emory University, and soccer moms in south Gwinnett County. However, Majette at least has some sense; especially when compared with McKinney.
Although, considering that McKinney and her father have a history of protesting vehemently when they don't get their way, I wouldn't be surprised if this summer's election is a sordid and contested affair after the fact. McKinney and her father, Georgia state senator Billy McKinney are charged with campaigning within a polling place during the 2000 election. The charge is under investigation.
If it comes out that the charges are able to stick (and I'm sure they will ultimately), then that is yet another mark against McKinney. Not only that, but it is a charge that the House Ethics Committee can not afford to ignore. McKinney will try to hide behind her race, but there are too many black folks (like Kevin Martin and myself with Project 21 and many others) who won't stand for it.
I don't know how long the state election board is due to sit on this though (with the state leadership under Democratic control who knows?).