just my opinion, i believe it has been stated once but i just want to re-iterate...
if you decide to date a woman with a kid, the thing most people fight about the most is the dicipline of the child. we all know children need corrected now and then, but if the mother isnt cool with you diciplining her child, then you will fight. especially if she disagrees with you in front of the kid, then that opens all kinds of doors for them to be manipulative (not that all kids would do that, but alot would).
there are good things to being with a woman with kids too, the possible bond you could form with the kid as well, but dont let that attachment get in the way of an unhealthy relationship either.
cliffs: there are many pros and cons to it, best thing to do is sit down and have a serious talk with the woman if you plan to get serious with her.