According to the Fisher Price website, there are no Little People lead paint recalls. The recent lead paint recalls they list are for Dora and Sesame Street items, so you may want to check out the list if you have any of those. Here's the website: http://www.fisher-price.com/us/default.asp
Wife to a wonderful dh and mom to four beautiful kiddos, dd (3/04):, ds1 (1/06), ds2 (10/08), and ds3 (7/10)
I think the other poster was just expressing concern because the Little People sets are reportedly made in China. But I haven't seen anything about a recall, and I looked, because my daughter has a LOT of Little People!
I put all of our little people into a bin to get rid of... I'm just not comfortable with them going into my 18mo son's mouth.. afaik, the paint that china uses could be lead one day, fine the next, lead for a few weeks, fine for a few days.. etc. no amount of testing is going to find every toy that has been contaminated in the time that china has been manufacturing questionable toys.
If you are not comfortable, get rid of them. Better safe than sorry, unfortunately.