I always said two, with an option for three. But after DS was born, DH said he didn't want anymore. Too bad for him, since he's getting at least one more in 8 months!
Depending on the gender of this one though, and how my pregnancy goes, I may be done after this. I've always had dreams of having at least one boy and one girl, but my pregnancy with DS wasn't easy, so I'm a little apprehensive at how this one is going to turn out. If I get my girl this time, I'll most likely be done. If it's another boy, I may still be done, but I won't be so decided on it.