We originally said between 2 and 6, depending. Then we had two, wanted more than two, were convinced 2 was our number, and got #3! DH would still like a fourth, but the clock is ticking and I think a fourth would push me over the edge--I'm teetering there now!
But I think it's like that song, "I never cared for brown eyes, but you have brown eyes, and brown eyes are my weakness now!", or however it goes--you have to be happy with what you got. I never wanted a big gap between siblings, either, but now I see there are good things to that, too.